Improved process workflow

[michaelkvance]

Currently it is possible to flush all loaded symbols for the current session by selecting a new process in the process listing. Instead we suggest a workflow where each session is locked to a process once a selection is confirmed. This will also allow things such as auto-loading PDBs, recording/serializing data related to that process into the session, such as PDB references, exe/PDB hash agreements, etc.

[dimitry-]

this was resolved, the list of symbols no longer clears when user switches the process.