Jayesh Badwaik d562441fc9 [xmsh] add support for xmsh library (#4656)
* [xmsh] add support for xmsh library

  - xmsh is a mesh document format. xmsh library is the reference
    implementation for the format.

* [xmsh] removed extraneous file command

* [xmsh] update version to v0.2.3

* [xmsh] upgrade to version v0.3.1

* [xmsh] update to version v0.4

* + fix python executable packaging

* [vcpkg_find_acquire_program] Fix PYTHON3 on non-Windows
2018-11-26 16:52:11 -08:00
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