Implement Remaining MKn$, CVn Functions

[boxgaming]

MKI$, MKL$, MKS$, and MKD$ convert numbers to numeric strings that can be stored in FIELD statement string variables. CVI, CVL, CVS, and CVD convert those strings back to numbers.

MKI$(integer-expression%)
MKL$(long-integer-expression&)
MKS$(single-precision-expression!)
MKD$(double-precision-expression#)
CVI(2-byte-numeric-string)
CVL(4-byte-numeric-string)
CVS(4-byte-numeric-string)
CVD(8-byte-numeric-string)

Function	Returns	Function	Returns
MKI$	A 2-byte string	CVI	An integer
MKL$	A 4-byte string	CVL	A long integer
MKS$	A 4-byte string	CVS	A single-precision number
MKD$	An 8-byte string	CVD	A double-precision number