Fixed a major issue of building eXe with UMCloud changes while building for Windows:
1. Used only native libraries. Windwos eXe build hates addition of any new libraries
2. Made a class multipartposthandler.py that assists in multi-part post requests to transfer elp files to umcloud.
3. The .pyc files in this class folder NEED to be cloned to build dir. eXe build is not clear on how to add custom classes to build ( a simple import cow will not work) and addition libraries that need to be added just dont work yet.
4. These changes work and build normally on the VM server tested.