conditional debug + profiling

[tarunKoyalwar]

Proposed changes

go install -tags debug -v github.com/projectdiscovery/nuclei/v2/cmd/nuclei@verbose-debug

Checklist

• Pull request is created against the dev branch
• All checks passed (lint, unit/integration/regression tests etc.) with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[Mzack9999]

What do you think about implementing a generic logic in the utils package as per projectdiscovery/utils#265 and then using an environment variable to activate the automatic dump, so that we don't need a recompilation and can also take snapshot in combination with arbitrary cli options?
I think something like the following with reasonable defaults (customizable with env variables) might be handy and applied to all the tools:

PPROF=1 nuclei

[tarunKoyalwar]

closing this as we are adding it in utils and will be implicity added to all tools deriving from utils with PPROF as switch
ref: projectdiscovery/utils#266