Add FP rounding self test
Add FP rounding self test

svaarala/duktape,markand/duktape,harold-b/duktape,svaarala/duktape,svaarala/duktape,harold-b/duktape,markand/duktape,jmptrader/duktape,harold-b/duktape,svaarala/duktape,harold-b/duktape,jmptrader/duktape,markand/duktape,markand/duktape,markand/duktape,harold-b/duktape,svaarala/duktape,jmptrader/duktape,harold-b/duktape,markand/duktape,jmptrader/duktape,markand/duktape,jmptrader/duktape,markand/duktape,markand/duktape,harold-b/duktape,jmptrader/duktape,harold-b/duktape,svaarala/duktape,jmptrader/duktape,harold-b/duktape,jmptrader/duktape,svaarala/duktape,markand/duktape,jmptrader/duktape,svaarala/duktape,jmptrader/duktape,harold-b/duktape,svaarala/duktape