Change the order of libraries and object files in the generated .prl files

For the gcc compiler family order of the static libraries is critical in case of a partial archive linking. If an object file uses symbols of the static library it either should be placed before the library in the linker command line or wrapped with the --start/end-group options.
This paradigm should be implemented in the generated .prl files.

Currently, this may cause the 'undefined reference' issue to the QtCore symbols when linking to a static plugin that uses qt resources.