Api hw gpio pwm (#199)

* initial gpio layer

* move temlplate.c to template.c.example in preparing to applications.mk rework

* separate arduino layer

* separate flipper_hal.x

* prepare to switch applications on v2 core gpio api

* swithch applications to v2 gpio api

* gpio api for local target

* better gpio_disable handling

* remove pwm functions from local target

* inline gpio funcs

* common function to init all api's

* fix local example blink

* move delay us to hal api folder

* move pwm_set/pwm_stop to hal api folder

* update applications to use hal pwm api

* remove gpio mode case warning

* add speaker demo to build

Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>

core/app.cpp

@@ -2,6 +2,7 @@
 
 extern "C" {
 #include "flipper.h"
+#include "flipper_v2.h"
 #include "log.h"
 #include "applications.h"
 #include "tty_uart.h"
@@ -14,6 +15,7 @@ extern "C" void set_exitcode(uint32_t _exitcode) {
 }
 
 extern "C" int app() {
+    init_flipper_api();
     register_tty_uart();
 
     FuriRecordSubscriber* log = get_default_log();