Add insertAndReturn

[pull-vert]

Uses DB specific to return the inserted tuple :

• RETURNING field1, field2... for MariaDB and PostgreSQL
• SELECT field1, field2... for H2
• OUTPUT field1, field2... for Microsoft SQL Server
• Add an extra SELECT for MySQL, that uses LAST_INSERT_ID for auto-incremented PK
• Add an extra SELECT for SqLite, that uses generated id returned by executeInsert