Feature/path normalization (#1674)

* Path normalization (making sure there are fewer cases of '"..."'
* Using more std::filesystem::path instead of std::string
* Update Ghoul

modules/base/rendering/renderablesphere.cpp

@@ -452,7 +452,7 @@ void RenderableSphere::loadTexture() {
         if (texture) {
             LDEBUGC(
                 "RenderableSphere",
-                fmt::format("Loaded texture from '{}'", absPath(_texturePath))
+                fmt::format("Loaded texture from {}", absPath(_texturePath))
             );
             texture->uploadTexture();
             texture->setFilter(ghoul::opengl::Texture::FilterMode::LinearMipMap);