[non-BE][allow regression] Add object editing gain limitations as agreed.
Limits gain editing internally as proposed in #2186.
- For discrete: +12dB to -inf dB
- For parametric modes: +12dB to -24dB
Requested reviewer: @weckbecker
Edited by lintervo
Limits gain editing internally as proposed in #2186.
Requested reviewer: @weckbecker