[debugger] In-Portal Debugger Improvements [5.3.0-B1]

Historically the debugger component of In-Portal (one that is shown on F12 press and has yellow/pink reports) was built to be independent from In-Portal core:

I think that we should make it more In-Portal friendly by:

• moving out debugger into separate namespace
• extracting profiler component out from debugger
• include jQuery from CDN when jQuery variable not present on a page instead of duplicating code locally
• store debugger runs in database for easy management
• record several debugger runs per page (main page + all ajax requests)
• unique request key is GET+POST+URL+REFERER (for ajax requests)
• associate ajax requests back to main page from which it was made so we can see whole requests together
• don't delete debugger report after it was viewed
• redesign debugger UI to allow seeing ajax request reports as they are created
• create separate sections in debugger for following (see below) instead of mixing all together:
  • error/warning/notice
  • request data
  • external requests (curl, db, memcache)
  • other

Basically we're going into Phabricator-alike DarkConsole tool:

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