If there's one thing I learned in this exercise, it's that letting
people add random python scripts to the repo like gpltext.py that
promise to be easier than find and replace is a bad idea.
GetSqlType() does not recognise System.Data.SQLite.Core because the type of the SQL connection class has been renamed to `SQLiteConnection` from `SqliteConnection`. This commit adds support for both, so that the DB manager classes can operate with plugins which reference the new SQLite ADO.net providers from NuGet.
-sqlite altering
-implemented mysql
Todo:
-Merge SqlTableCreator into the querybuilders or make it static
-Make all the managers use the querybuilder for making tables. (See GroupManager.cs for an example)
-Implement more datatypes (see TypesAsStrings in IQueryBuilder.cs)
