Nitpicks

[newAM]

• [ ] Replace wall-of-text # Safety sections with enumerated check-lists of requirements.
• [x] Lots of duplicated code across testsuites (fixed in #82)
• [x] Provide a from_millis, from_nanos, from_secs ect. with subghz::Timeout
• [ ] Normalize meta-access of peripherals for all peripherals (maybe trait these to enforce uniformity?)
  • [ ] pub unsafe fn steal() -> Self
  • [ ] fn mask_irq()
  • [ ] pub unsafe fn unmask_irq()
  • [ ] pub unsafe fn pulse_reset(rcc: &mut pac::RCC)
  • [ ] pub fn enable_clock(rcc: &mut pac::RCC)
  • [ ] pub unsafe fn disable_clock(rcc: &mut pac::RCC)
  • [ ] Normalize what new does with regards to clocks, resets, enables, and interrupts