Core code cleanup (#206)

* add delay function
* todo about delay_isr
* remove arduino defines and fix all apps to use core-api/hal-api
* delay for local target
* remove warnings of task_equal
* fix BSP_SD_Init
* fix USBD_static
* grio read constant pointer to gpio
* add TODO about ISR context
* const void* arg for pubsub api
* mark unused functions
* app pointers now pointed to constant apps
* fix printf format
* fix "unused" warnings in local target
* fix const pin read in local target
* fix int to pointer warnings in local target
* power read mutex error fix
* delete old makefile
* add -werror

Co-authored-by: Aleksandr Kutuzov <aku@plooks.com>
Co-authored-by: aanper <mail@s3f.ru>

applications/tests/minunit.h

@@ -76,8 +76,8 @@ extern "C" {
 #include "minunit_vars_ex.h"
 
 /*  Test setup and teardown function pointers */
-static void (*minunit_setup)(void) = NULL;
-static void (*minunit_teardown)(void) = NULL;
+__attribute__((unused)) static void (*minunit_setup)(void) = NULL;
+__attribute__((unused)) static void (*minunit_teardown)(void) = NULL;
 
 /*  Definitions */
 #define MU_TEST(method_name) static void method_name(void)
@@ -457,7 +457,7 @@ static void (*minunit_teardown)(void) = NULL;
  * The returned real time is only useful for computing an elapsed time
  * between two calls to this function.
  */
-static double mu_timer_real(void) {
+__attribute__((unused)) static double mu_timer_real(void) {
 #if defined(_WIN32)
     /* Windows 2000 and later. ---------------------------------- */
     LARGE_INTEGER Time;
@@ -529,7 +529,7 @@ static double mu_timer_real(void) {
  * Returns the amount of CPU time used by the current process,
  * in seconds, or -1.0 if an error occurred.
  */
-static double mu_timer_cpu(void) {
+__attribute__((unused)) static double mu_timer_cpu(void) {
 #if defined(_WIN32)
     /* Windows -------------------------------------------------- */
     FILETIME createTime;