[fparser2 FE] add support for more esoteric uses of KIND(X)

[arporter]

Currently PSyclone supports the common uses of the KIND intrinsic such as KIND(1) or KIND(1.0D0). However, KIND() can take a variable name (possibly an element of an array?) and/or any scalar expression, e.g. -1.0 or .FALSE.. We will add support for these cases in this Issue.