soft hold access

Description

• ability to activate soft hold from software
• minor changes to ConfigureParameters to account for ugc gains changing outside

see burt/firmware/burt-firmware!234

What to focus on

• put content here.

Reviewers

• @alexluleme
• @amyblank
• @bz
• @cw
• @ps
• @wd

Resources

Issues

What issues does this fix?

• Addresses burt/project#72 (BurtSharp side)