feat: add UART V2 support with formal verification and test cases

- Updated filelist to include new UART source files.
- Enhanced formal file generation script to support UART target.
- Introduced formal verification module and properties for UART.
- Modified makefiles to include UART in formal targets and source files.
- Added UART-related source files to software build.
- Updated top-level wrapper to integrate UART DMA signals.
- Implemented UART testbench for comprehensive testing of functionality.
- Created Python test script for UART V2 register, FIFO, and interrupt tests.
- Added UART helper functions in C test runtime.
- Updated DMA error testbench to handle UART signals.
- Ensured WS2812 DMA testbench accommodates UART signals.

scripts/run_c_tests.py

@@ -22,6 +22,7 @@ TEST_SOURCES = (
     "crt/src/lib/string.c",
     "crt/src/hal/gpio_math.c",
     "crt/src/hal/ws2812_math.c",
+    "crt/src/hal/uart_math.c",
     "crt/src/hal/timer_math.c",
     "app/media/src/video_player.c",
     "app/media/src/wav_audio.c",