Test several tactile switches

Problem environment

The look and feel of the device generally improves with the correct choice of tactile switches.

Steps to reproduce

1. Observe the position and appearance of swithces
2. Press and feel the tactile nature of input

Expected result

The force required is just right, the color and gloss is good, and the sound made by pressing is satisfying.

Actual result

Answers to the questions of tactile switch choice are not on hand.

Severity level

This is low priority because project requirements make no mandate.

The first choice are C&K KSC switches and the second choice are K&C PTS switches, as indicated in ec01c31.