Preliminary Rust support (#1781)

* Add support for R_ARM_THM_MOVW_ABS_NC/THM_MOVT_ABS

These are sometimes emitted by the Rust LLVM compiler.

Ref: https://github.com/ARM-software/abi-aa/blob/main/aaelf32/aaelf32.rst#56relocation

* Discard LLVM bitcode from extension applications

LLVM-based compilers may include uncompressed bitcode in object files
to help with link-time optimization. However this can bloat binary sizes
from KB to MB.

* Expose alligned_malloc/free functions to applications

This is required to implement a global allocator in Rust.

lib/flipper_application/elf/elf.h

@@ -1116,6 +1116,8 @@ typedef struct {
 #define R_ARM_LDR_SBREL_11_0 35
 #define R_ARM_ALU_SBREL_19_12 36
 #define R_ARM_ALU_SBREL_27_20 37
+#define R_ARM_THM_MOVW_ABS_NC 47 /* Direct 16 bit (Thumb32 MOVW) */
+#define R_ARM_THM_MOVT_ABS 48 /* Direct high 16 bit */
 #define R_ARM_GNU_VTENTRY 100
 #define R_ARM_GNU_VTINHERIT 101
 #define R_ARM_THM_PC11 102 /* thumb unconditional branch */