Added CI script, updated dependencies, and fixed bugs

-Added CI yaml file for workflows
-Added `doctest` as dependency
-Added test target executable to CMakeLists.txt
-Renamed `bin` scripts to remove `gdpm*` prefix
-Updated `SQLite 3` dependency in CMakeLists.txt
-Implement basic unit testing in `tests/basic.cpp`
-Fixed issue with handling `fmt` strings

src/main.cpp

@@ -1,11 +1,11 @@
 
 // Godot Package Manager (GPM)
-
 #include "constants.hpp"
 #include "log.hpp"
 #include "config.hpp"
 #include "package_manager.hpp"
 
+
 int main(int argc, char **argv){
 	gdpm::package_manager::initialize(argc, argv);
 	gdpm::package_manager::execute();