[FL-1885] USB-UART bridge

[nminaylov]

What's new

• USB-UART bridge application
• LPUART driver

Verification

• Go to GPIO->USB-UART bridge
• Set port configuration and select enable to start bridge
• Short Rx/Tx or C0/C1 (depending on selected port)
• Connect to VCP port 0/1 (depending on selected channel), data sent to console should return back
• Stop bridge by selecting disable or by pressing back

Checklist (do not modify)

• PR has description of feature/bug or link to Confluence/Jira task
• Description contains actions to verify feature/bugfix
• I've built this code, uploaded it to the device and verified feature/bugfix

[github-actions]

Click here to flash the 39d22aa6 version of this branch via WebUSB.

[github-actions]

Please fix following code formatting errors:

./applications/gpio/scenes/gpio_scene_usb_uart.c:110:45: error: code should be clang-formatted [-Wclang-format-violations]
static void usb_uart_worker(void* context) {
                                            ^
./applications/gpio/scenes/gpio_scene_usb_uart.c:125:7: error: code should be clang-formatted [-Wclang-format-violations]
    if (usb_uart->cfg_cur.vcp_ch == 0) {
      ^
./applications/gpio/scenes/gpio_scene_usb_uart.c:135:44: error: code should be clang-formatted [-Wclang-format-violations]
        if(usb_uart->cfg_cur.baudrate != 0) 
                                           ^
./applications/gpio/scenes/gpio_scene_usb_uart.c:142:44: error: code should be clang-formatted [-Wclang-format-violations]
        if(usb_uart->cfg_cur.baudrate != 0) 
                                           ^
./applications/gpio/scenes/gpio_scene_usb_uart.c:175:7: error: code should be clang-formatted [-Wclang-format-violations]
    if (usb_uart->cfg_cur.vcp_ch == 0)
      ^
./applications/gpio/scenes/gpio_scene_usb_uart.c:175:39: error: code should be clang-formatted [-Wclang-format-violations]
    if (usb_uart->cfg_cur.vcp_ch == 0)
                                      ^

You might want to run docker compose exec dev /syntax_check.sh for an auto-fix.