opencascade f3d: use tcl-tk

[cho-m]

• Have you followed the guidelines for contributing?
• Have you ensured that your commits follow the commit style guide?
• Have you checked that there aren't other open pull requests for the same formula update/change?
• Have you built your formula locally with HOMEBREW_NO_INSTALL_FROM_API=1 brew install --build-from-source <formula>, where <formula> is the name of the formula you're submitting?
• Is your test running fine brew test <formula>, where <formula> is the name of the formula you're submitting?
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Trying this again as seems to build with TCL9

[cho-m]

* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x100028)
  * frame #0: 0x000000010c4985d4 libtcl9.0.dylib`Tcl_MutexLock + 16
    frame #1: 0x000000010c4707e4 libtcl9.0.dylib`TclpAlloc + 196
    frame #2: 0x000000010c39d690 libtcl9.0.dylib`Tcl_Alloc + 24
    frame #3: 0x000000010c4985f8 libtcl9.0.dylib`Tcl_MutexLock + 52
    frame #4: 0x000000010c414ccc libtcl9.0.dylib`Tcl_Exit + 36
    frame #5: 0x0000000106d697b8 libTKDraw.7.9.dylib`Draw_Interpretor::~Draw_Interpretor() + 80
    frame #6: 0x000000019e362944 libsystem_c.dylib`__cxa_finalize_ranges + 480
    frame #7: 0x000000019e362704 libsystem_c.dylib`exit + 44
    frame #8: 0x000000010004e384 f3d`main + 132
    frame #9: 0x000000019e10ab98 dyld`start + 6076