Allw importation of custom projection .prj files

[ThomasHoman]

When processing a flight, it would be great to have the option to import a projection .prj file when a non-epsg projection is needed. 

By having the projection available as opposed to the current method of tying GCP's to the panels in the imagery manually, one develops a more rigid control of the project making it more useful/traceable for engineering purposes. 

[NicoBonnafoux]

@ThomasHoman do you have a sample project with GCPs, images and a projection file you could share with us so we can look into this? 

[ThomasHoman]

@NicoBonnafoux I have a sample data set packaged up and sent the url via DM.

[NicoBonnafoux]

Thank you @ThomasHoman