put Silence Pod and Pod Diagnostics behind build-time flag

[marionbarker]

• supports Loop by using DEBUG_FEATURES_ENABLED flag
• make suspend message more generic

[marionbarker]

To test while still in the PR / branch diy_flag_for_silence_diagnostics now that this is merged (the SHA below were updated).

• For Mac build - paste in terminal in LoopWorkspace folder
• For Browser build - paste at the beginning of customization section of build_loop.yml
  • If testing more than one module, the update-index commands can be added one after the other
  • The git submodule update must come last

git update-index --cacheinfo 160000 5ff65bee566378de23d4d4b32a867c8f8f0c6de6 "OmniBLE"
git submodule update

Then build.

For the iphone version of iAPS that uses submodules - the Silence Pod and Pod diagnostics should be present in the OmniBLE Pod Settings screen because the logic flag is hard-coded to true (right side of graphic below).

For Loop, when DEBUG_FEATURES_ENABLED is commented out of the LoopConfigOverride.xcconfig file, the extra features are not present (left side of graphic below), when that flag is present (default for DIY Loop), the extra features are present (right side of graphic below).