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>

firmware/targets/local/api-hal/api-hal-gpio.h

@@ -0,0 +1,49 @@
+#pragma once
+#include "main.h"
+#include "stdbool.h"
+
+// hw-api
+
+typedef char GPIO_TypeDef;
+
+typedef enum {
+    GpioModeInput,
+    GpioModeOutputPushPull,
+    GpioModeOutputOpenDrain,
+    GpioModeAltFunctionPushPull,
+    GpioModeAltFunctionOpenDrain,
+    GpioModeAnalog,
+    GpioModeInterruptRise,
+    GpioModeInterruptFall,
+    GpioModeInterruptRiseFall,
+    GpioModeEventRise,
+    GpioModeEventFall,
+    GpioModeEventRiseFall,
+} GpioMode;
+
+typedef enum {
+    GpioSpeedLow,
+    GpioSpeedMedium,
+    GpioSpeedHigh,
+    GpioSpeedVeryHigh,
+} GpioSpeed;
+
+typedef enum {
+    GpioPullNo,
+    GpioPullUp,
+    GpioPullDown,
+} GpioPull;
+
+typedef struct {
+    GPIO_TypeDef* port;
+    uint16_t pin;
+} GpioPin;
+
+// init GPIO
+void hal_gpio_init(GpioPin* gpio, GpioMode mode, GpioPull pull, GpioSpeed speed);
+
+// write value to GPIO, false = LOW, true = HIGH
+void hal_gpio_write(GpioPin* gpio, bool state);
+
+// read value from GPIO, false = LOW, true = HIGH
+bool hal_gpio_read(GpioPin* gpio);