Changes

Summary

1. remove velocity cache at beginning of build to avoid possible memory leaks
2. improve accuracy and robustness in ocsmClearance; modify clearance* test cases to make Bodys transparent; add ocsm.Clearance() to pyOCSM; update WAFFLE documentation in ESP-help; add SPLITTER option to udfGanged to scribe a common Body
3. increase number of iterations to match point count on opposite Edges in a Face in udfCreateBEM
4. add metaMaterial test case; allow tilde (~) in strings; in BLEND, allow 3 consecutive C1 xsects if .C1side is specified on the middle one(s); add more blend23* test cases; update udfDroop so that cross-section does not have to be in unit-chord standard position; update udfDroop so that it works with a blunt trailing edge; add droop9* test cases; allow arbitrary paths for UDCs; add udprim4 and udprim5 test cases (udprim1 to udprim3 have jfdannen absolute addresses and are not tested by Jenkins)
5. allow DisplayFilter to select everything that does not match a pattern; update ESP-help near end of tutorial 1; add displayFilter2 test case
6. uprev to v1.25 (ESP.html, ESP-localhost.html, ESP-help.html, OpenCSM.h, ocsm.rc, ESP_QuickReference.tex); fix memory leak in RULE and BLEND when reorder=1 or -1 for open xsects; add rule30* and blend30* test cases; fix bug that did not reorder xsects in RULE and BLEND when xsect contains only one Edge
7. Fix Color attribute for IGES/STEP
8. Also read/write Name attribute to STEP geometry
9. ffp-model does not exist for older clang
10. Fix DARWIN64.gcc
11. Use -ffp-model=strict on macOS x86_64 as well
12. Missed one file
13. Update win README
14. Add OCC 7.8 to build
15. Fix Node return in localToGlobal by not looking at Degenerate Edges
16. Uprev DARWIN configs
17. Fix warning
18. Fix compile error on Linux
19. Fix typo
20. EGADS redme update for Windoze download
21. Missed files
22. Uprev EGADS. Add Face Color attribute for STEP/IGES