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

.github/workflows/build.yml

@@ -0,0 +1,11 @@
+name: github-ci
+
+on: [push]
+
+
+jobs:
+  build:
+
+
+  steps:
+  - uses: actions/checkout@v1