Added Introspection section to Scalar
Added Introspection section to Scalar

Specifically the "name", "default" and "dynamic" methods were not documented
yet.  And the "of" was buried in documentation about atomic ops.  Felt right
to create a separate Introspection section

tbrowder/doc,dmaestro/doc,jonathanstowe/doc,perl6/doc,jonathanstowe/doc,jonathanstowe/doc,perl6/doc,stmuk/doc,stmuk/doc,MasterDuke17/doc,jonathanstowe/doc,MasterDuke17/doc,perl6/doc,stmuk/doc,jonathanstowe/doc,dmaestro/doc,MasterDuke17/doc,tbrowder/doc,perl6/doc,stmuk/doc,perl6/doc,dmaestro/doc,dmaestro/doc,stmuk/doc,dmaestro/doc,tbrowder/doc,MasterDuke17/doc,tbrowder/doc