Improvements

Fixes:

• Fix make all for monobuild

Improvements:

• Print total configure time for monobuild
• VSCode: Update extension suggestions
• monobuild: Generate list of projects in a file, closes #72 (closed)
• Set ENABLE_BACKTRACE globally (not only in tests)
• Ignore .vscode directory in git
• Improve SSH instructions

Internal changes:

• Also link ninja-build to ninja from LbEnv