Fix of spatial domain refresh in OpenFLUID-Builder

* Refactored update procedure for spatial domain
* Added clear domain button in extensions tests

(closes OpenFLUID/openfluid#309)
Fix intersect polygon method

* Added horseshoe geometry handled for polygon intersection
* Added related tests
Update of copyright and license texts

(closes OpenFLUID/openfluid#42)
Removal of deprecated resources for applications
Update of CMake/CTest/CPack config files and information files

(closes OpenFLUID/openfluid#294)