* Set warning level to /W3 for MSVC to catch more warnings
* remove several excluded checks for clang
* removed several unused variables
* Hide warnings qwt
* add missing parentheses in logical expressions
* Remove double check on same logical expression
* Performance : Improve surface import
* Performance: Use opm when importing files
* Surface : Use the triangle size as basis for the maximum search distance
* Performance : Resample surfaces in parallell
* Performance: Import file surfaces in parallell
* Ensemble Surface : Create one ensemble per surface