Rearrange the file layout in preparation of becoming a monorepo

Move the documentation to `doc/plugin/CycleTimeReport.md`, sources under
`src/kaleidoscope/plugin/` (appropriately namespaced). This is in preparation of
merging plugins into a single monorepo.

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

README.md

@@ -5,54 +5,4 @@
  [travis:image]: https://travis-ci.org/keyboardio/Kaleidoscope-CycleTimeReport.svg?branch=master
  [travis:status]: https://travis-ci.org/keyboardio/Kaleidoscope-CycleTimeReport
 
-A development and debugging aid, this plugin will measure average mainloop times
-(in microseconds) and print it to `Serial` periodically. While not the most
-reliable way to measure the speed of processing, it gives a reasonable
-indication nevertheless.
-
-## Using the plugin
-
-The plugin comes with reasonable defaults (see below), and can be used out of
-the box, without any further configuration:
-
-```c++
-#include <Kaleidoscope.h>
-#include <Kaleidoscope-CycleTimeReport.h>
-
-KALEIDOSCOPE_INIT_PLUGINS(CycleTimeReport);
-
-void setup (void) {
-  Serial.begin(9600);
-  Kaleidoscope.setup ();
-}
-```
-
-## Plugin methods
-
-The plugin provides a single object, `CycleTimeReport`, with the following
-property. All times are in milliseconds.
-
-### `.average_loop_time`
-
-> A read-only by contract value, the average time of main loop lengths between
-> two reports.
-
-## Overrideable methods
-
-### `cycleTimeReport()`
-
-> Reports the average loop time. By default, it does so over `Serial`, every
-> time when the report period is up.
->
-> It can be overridden, to change how the report looks, or to make the report
-> toggleable, among other things.
->
-> It takes no arguments, and returns nothing, but has access to
-> `CycleTimeReport.average_loop_time` above.
-
-## Further reading
-
-Starting from the [example][plugin:example] is the recommended way of getting
-started with the plugin.
-
- [plugin:example]: https://github.com/keyboardio/Kaleidoscope-CycleTimeReport/blob/master/examples/CycleTimeReport/CycleTimeReport.ino
+See [doc/plugin/CycleTimeReport.md](doc/plugin/CycleTimeReport.md) for documentation.

doc/plugin/CycleTimeReport.md

@@ -0,0 +1,53 @@
+# Kaleidoscope-CycleTimeReport
+
+A development and debugging aid, this plugin will measure average mainloop times
+(in microseconds) and print it to `Serial` periodically. While not the most
+reliable way to measure the speed of processing, it gives a reasonable
+indication nevertheless.
+
+## Using the plugin
+
+The plugin comes with reasonable defaults (see below), and can be used out of
+the box, without any further configuration:
+
+```c++
+#include <Kaleidoscope.h>
+#include <Kaleidoscope-CycleTimeReport.h>
+
+KALEIDOSCOPE_INIT_PLUGINS(CycleTimeReport);
+
+void setup (void) {
+  Serial.begin(9600);
+  Kaleidoscope.setup ();
+}
+```
+
+## Plugin methods
+
+The plugin provides a single object, `CycleTimeReport`, with the following
+property. All times are in milliseconds.
+
+### `.average_loop_time`
+
+> A read-only by contract value, the average time of main loop lengths between
+> two reports.
+
+## Overrideable methods
+
+### `cycleTimeReport()`
+
+> Reports the average loop time. By default, it does so over `Serial`, every
+> time when the report period is up.
+>
+> It can be overridden, to change how the report looks, or to make the report
+> toggleable, among other things.
+>
+> It takes no arguments, and returns nothing, but has access to
+> `CycleTimeReport.average_loop_time` above.
+
+## Further reading
+
+Starting from the [example][plugin:example] is the recommended way of getting
+started with the plugin.
+
+ [plugin:example]: https://github.com/keyboardio/Kaleidoscope-CycleTimeReport/blob/master/examples/CycleTimeReport/CycleTimeReport.ino

src/Kaleidoscope-CycleTimeReport.h

@@ -17,4 +17,4 @@
 
 #pragma once
 
-#include <kaleidoscope/CycleTimeReport.h>
+#include <kaleidoscope/plugin/CycleTimeReport.h>

src/kaleidoscope/plugin/CycleTimeReport.cpp

@@ -18,6 +18,7 @@
 #include <Kaleidoscope-CycleTimeReport.h>
 
 namespace kaleidoscope {
+namespace plugin {
 uint32_t CycleTimeReport::next_report_time_;
 uint32_t CycleTimeReport::loop_start_time_;
 uint32_t CycleTimeReport::average_loop_time;
@@ -50,6 +51,7 @@ EventHandlerResult CycleTimeReport::afterEachCycle() {
   return EventHandlerResult::OK;
 }
 
+}
 }
 
 __attribute__((weak)) void cycleTimeReport(void) {
@@ -57,4 +59,4 @@ __attribute__((weak)) void cycleTimeReport(void) {
   Serial.println(CycleTimeReport.average_loop_time);
 }
 
-kaleidoscope::CycleTimeReport CycleTimeReport;
+kaleidoscope::plugin::CycleTimeReport CycleTimeReport;

src/kaleidoscope/plugin/CycleTimeReport.h

@@ -20,6 +20,7 @@
 #include <Kaleidoscope.h>
 
 namespace kaleidoscope {
+namespace plugin {
 class CycleTimeReport : public kaleidoscope::Plugin {
  public:
   CycleTimeReport() {}
@@ -35,7 +36,8 @@ class CycleTimeReport : public kaleidoscope::Plugin {
   static uint32_t loop_start_time_;
 };
 }
+}
 
 void cycleTimeReport(void);
 
-extern kaleidoscope::CycleTimeReport CycleTimeReport;
+extern kaleidoscope::plugin::CycleTimeReport CycleTimeReport;