…ckCycles (like in rest of core API for this type of use).

Fix/clarify comments.
Fix redundancies in Tone, end Tone waveform on exact period limit for proper sound.
Fix redundancies in wiring_pwmExtend Servo to map in-use pins, Tone already has this.

dok-net changed the title Pickup lose some ends from PR #7211 Pickup some lose ends from PR #7211

dok-net changed the title Pickup some lose ends from PR #7211 Pickup some loose ends from PR #7211

d-a-v changed the title Pickup some loose ends from PR #7211 Pickup some loose ends from PR #122

d-a-v changed the title Pickup some loose ends from PR #122 Pickup some loose ends from PR #7122