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

.travis.yml

@@ -0,0 +1,17 @@
+os: linux
+language: cpp
+compiler: clang
+
+env:
+  - ARCH_TRAVIS_VERBOSE=1
+
+archlinux:
+  repos:
+  packages:
+    - base-devel 
+    - git
+    - yay
+
+    script:
+    - "bin/compile.sh"
+