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/SConscript

@@ -0,0 +1,13 @@
+Import("env")
+
+env.Append(LINT_SOURCES=["furi"])
+
+
+libenv = env.Clone(FW_LIB_NAME="furi")
+libenv.ApplyLibFlags()
+
+sources = libenv.GlobRecursive("*.c")
+
+lib = libenv.StaticLibrary("${FW_LIB_NAME}", sources)
+libenv.Install("${LIB_DIST_DIR}", lib)
+Return("lib")