Changes for version 7.0

TCL/TK 9.0.1 was used as the basis for freeWrap 7.0. Tktable (statically linked into the freeWrap build) has been updated to version 2.12 Instead of providing its own virtual file system, freeWrap now uses the virtual file system provided by TCL 9.0. The zvfs namespace and command is no longer provided. Users are expected to use TCL s zipfs command, instead. The ::freewrap::makeZIP command is no…