Optimise the radio switch circuit

Problem environment

The radio switching circuit is complex and benefits from peer review and optimisation following tests.

Steps to reproduce

1. Locate circuits around the radio switch
2. Package the information for email format
3. Send to the transceiver manufacturer
4. Request review and advice

Expected result

The manufacturer replies with the appropriate switch model as well as suggestions relating to the frequency balencing passive parts.

Actual result

No information is gathered to allow radio switch optimisation.

Severity level

This is low priority because project requirements do not include radio path optimisations.

Partially solved in 76f8fc9, by reducing unneeded vias and severed traces.