[FL-938] Keyboard widget changes (#398)

* inputs: add repeat event
* byte_input: change draw
* text_input, byte_input: process repeat event

applications/input/input.h

@@ -10,6 +10,7 @@ typedef enum {
     InputTypeRelease, /* Release event, emitted after debounce */
     InputTypeShort, /* Short event, emitted after InputTypeRelease done withing INPUT_LONG_PRESS interval */
     InputTypeLong, /* Long event, emmited after INPUT_LONG_PRESS interval, asynchronouse to InputTypeRelease  */
+    InputTypeRepeat, /* Repeat event, emmited with INPUT_REPEATE_PRESS period after InputTypeLong event */
 } InputType;
 
 /* Input Event, dispatches with PubSub */