Create a pure Javascript identity function

Used to return primary values of functions
Create a first parameter VALUES (unused by now) in each function and each funcall
VALUES-LIST
Rename ID to PV (primary value)
Do not inline builtin funcionts out of a lambda
Values is inlined only in functions
Export VALUES, VALUES-LIST and MULTIPLE-VALUE-CALL
MULTIPLE-VALUE-P argument to LS-COMPILE
MULTIPLE-VALUE-CALL implementation
IF can return multiple values
multiple values support in the REPL
Progresses in multiple values support
Some comments
FUNCALL and APPLY can return multiple values
Fix progn issue with multiple values
Merge branch 'multiple-values-implementation' into gh-pages