Values are close friends of Defers

They now share the same runtime methods for reading and writing

git-svn-id: svn://svn.code.sf.net/p/amforth/code/trunk@1491 fd1c0b69-5d68-47f5-910c-86182ebb6ecd

Conflicts:
	core/words/dp.asm
	core/words/edp.asm
	core/words/here.asm
	core/words/marker.asm
	core/words/value.asm
Is part of rev 1491

git-svn-id: svn://svn.code.sf.net/p/amforth/code/trunk@1492 fd1c0b69-5d68-47f5-910c-86182ebb6ecd
Is part of rev 1491

git-svn-id: svn://svn.code.sf.net/p/amforth/code/trunk@1492 fd1c0b69-5d68-47f5-910c-86182ebb6ecd
Follow Matthias value to defef unification