FEAT: CHANGE: making SET native to be more compatible with Red-language version

There is new refinement /ONLY which treat source block or object like single value (so the result is like it was in R3-alpha)

The /PAD refinement was replaced with /SOME refinement. The functionality is now reversed: when no refinement is used, it works like if there was /PAD before. If /SOME is used, there is no padding and also target value is not replaced with none value from the source, if there is any.

Related issue: metaeducation/rebol-issues#2358

Author: Oldes

src/tests/run-tests.r3

@@ -9,6 +9,7 @@ dt [ ;- delta time
 	***start-run*** "All tests"
 	;recycle/torture
 	wrap load %units/lexer-test.r3
+	wrap load %units/evaluation-test.r3
 	wrap load %units/enbase-test.r3
 	wrap load %units/map-test.r3
 	wrap load %units/integer-test.r3