[FL-1506, FL-2197] Power, USB, LED driver improvements

[nminaylov]

What's new

• LP5562, BQ27220, BQ25896: Switch to new I2C API
• LP5562: programs loading and executing, ramp-up/ramp-down using program engine
• furi_hal_light: smooth display backlight control
• furi_hal_usb: mode switch bug fix, skipping empty string descriptors
• bootloader: I2C register read/write
• power_observer: detecting strange USB behaviour, detecting OTG boost converter failure
• variable_item_list: fix value text alignment
• Scroll by holding up/down key in menu, submenu, variable_item_list, file dialog

Verification

• Check that USB is still working on windows/mac

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]

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