Add convenience variants of sqlite3.wasm.peek/poke() for each numeric type to help...

Add convenience variants of sqlite3.wasm.peek/poke() for each numeric type to help reduce errors related to typos in the final argument (type-name strings). If wasm.xWrap.FuncPtrAdapter is called as a function, instead of a constructor, it now behaves as if it were called as a constructor (previously it threw an exception).

FossilOrigin-Name: 14e3fc01b929fa3f9a2fdbd93deb4a8aad58c111d46369c772def0437152fa75