Move simple table SQL definition.
Add function to get unqualified projection.
Function rename.
Update descriptions.
Module renamed.

--HG--
rename : relational-join/src/Database/Relational/Query/Monad/Core.hs => relational-join/src/Database/Relational/Query/Monad/Type.hs
Add only restrict context monad type.
Add functions to generate update and delete SQL.
Change from append style into prepend style.

--HG--
rename : relational-join/src/Database/Relational/Query/Monad/Trans/StateAppend.hs => relational-join/src/Database/Relational/Query/Monad/Trans/StatePrepend.hs
Generate typed update and delete from restrict only monad.