gitignore: Add .vs folder to ignore
gitignore: Add .vs folder to ignore

fernandovm/SQLite.Net-PCL,oysteinkrog/SQLite.Net-PCL,mattleibow/SQLite.Net-PCL,molinch/SQLite.Net-PCL,caseydedore/SQLite.Net-PCL,igrali/SQLite.Net-PCL,TiendaNube/SQLite.Net-PCL,igrali/SQLite.Net-PCL,kreuzhofer/SQLite.Net-PCL