For Cloud: Add control for binary redaction of console to scope.yml

[jrcheli]

We currently have control of this feature with SCOPE_ALLOW_BINARY_CONSOLE.

Our motivation for adding it to our config file is that we think it might be useful on a process by process basis (custom config).

Another action that we've talked about taking at the same time, is that we think we should change the default value of this binary console redaction feature disabled by default...

[jrcheli]

In the series of commits on the feature/970-binary-console-config branch...

• added a spot for allow_binary_console in cfg
• changed the env var processing to set this state in cfg and ctl
• fixed integration test to account that default allow_binary_console was false, and now is true.
• add yml processing from scope.yml to set the state in cfg
• output this state in json when reporting config
• I copied the state for allow_binary_console from cfg to ctl, which we've said we don't want to do. Come back to this.

[michalbiesek]

cc: @jrcheli
I allowed myself to continue your great work here:

• added a spot for allow_binary_console in cfg
• changed the env var processing to set this state in cfg and ctl
• fixed integration test to account that default allow_binary_console was false, and now is true.
• add yml processing from scope.yml to set the state in cfg
• output this state in json when reporting config
• I copied the state for allow_binary_console from cfg to ctl, which we've said we don't want to do. Come back to this.

I decided not to make changes related to the last point. It would require a refactor ctl module, which IMHO can be done later.

[jrcheli]

Looks great! I tweaked processEvtWatchBinary(), to use cfgAllowBinaryConsoleSetFromStr() just for consistency with other similar functions. This isn't a functional difference. Confirmed that things are working end-to-end by inspecting the output of this quick test.

rm /tmp/scope.log
LD_PRELOAD=lib/linux/x86_64/libscope.so SCOPE_ALLOW_BINARY_CONSOLE=false SCOPE_LOG_LEVEL=info ps -ef
cat /tmp/scope.log