[FL-1228] FuriHal: add charge suppress API. (#743)

* FuriHal: add charge suppress API.

* FuriHal: add guards to insomnia and charge suppress routines.

* FuriHal: proper API for scheduler in power.

* FuriHal: move charging control from critical section, fix deadlock.

* Gui: use FreeRTOS native timers controls for IconAnimation, fix crash on animation start stop

lib/drivers/bq25896.h

@@ -12,6 +12,12 @@ void bq25896_poweroff();
 /** Is currently charging */
 bool bq25896_is_charging();
 
+/** Enable charging */
+void bq25896_enable_charging();
+
+/** Disable charging */
+void bq25896_disable_charging();
+
 /** Enable otg */
 void bq25896_enable_otg();