Merge pull request #8 from gabrield/master

Some modifs
With this commit, MariaMole is already functional, but with some constraints

Features implemented in this version:
-Select workspace
-Load and save projects on the current workspace
-Compile, link and upload the current project
-Message window, to display errors/warnings from the project building process
-Import project wizard
-Project properties editor window
Fixes
compiles on Linux / cpp files added to CMake