Furi: core refactoring and CMSIS removal part 2 (#1410)

* Furi: rename and move core
* Furi: drop CMSIS_OS header and unused api, partially refactor and cleanup the rest
* Furi: CMSIS_OS drop and refactoring.
* Furi: refactoring, remove cmsis legacy
* Furi: fix incorrect assert on queue deallocation, cleanup timer
* Furi: improve delay api, get rid of floats
* hal: dropped furi_hal_crc
* Furi: move DWT based delay to cortex HAL
* Furi: update core documentation

Co-authored-by: hedger <hedger@nanode.su>

furi/core/base.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+    FuriWaitForever = 0xFFFFFFFFU,
+} FuriWait;
+
+typedef enum {
+    FuriFlagWaitAny = 0x00000000U, ///< Wait for any flag (default).
+    FuriFlagWaitAll = 0x00000001U, ///< Wait for all flags.
+    FuriFlagNoClear = 0x00000002U, ///< Do not clear flags which have been specified to wait for.
+
+    FuriFlagError = 0x80000000U, ///< Error indicator.
+    FuriFlagErrorUnknown = 0xFFFFFFFFU, ///< FuriStatusError (-1).
+    FuriFlagErrorTimeout = 0xFFFFFFFEU, ///< FuriStatusErrorTimeout (-2).
+    FuriFlagErrorResource = 0xFFFFFFFDU, ///< FuriStatusErrorResource (-3).
+    FuriFlagErrorParameter = 0xFFFFFFFCU, ///< FuriStatusErrorParameter (-4).
+    FuriFlagErrorISR = 0xFFFFFFFAU, ///< FuriStatusErrorISR (-6).
+} FuriFlag;
+
+typedef enum {
+    FuriStatusOk = 0, ///< Operation completed successfully.
+    FuriStatusError =
+        -1, ///< Unspecified RTOS error: run-time error but no other error message fits.
+    FuriStatusErrorTimeout = -2, ///< Operation not completed within the timeout period.
+    FuriStatusErrorResource = -3, ///< Resource not available.
+    FuriStatusErrorParameter = -4, ///< Parameter error.
+    FuriStatusErrorNoMemory =
+        -5, ///< System is out of memory: it was impossible to allocate or reserve memory for the operation.
+    FuriStatusErrorISR =
+        -6, ///< Not allowed in ISR context: the function cannot be called from interrupt service routines.
+    FuriStatusReserved = 0x7FFFFFFF ///< Prevents enum down-size compiler optimization.
+} FuriStatus;
+
+#ifdef __cplusplus
+}
+#endif