feat: fetch tobieaslocker lib as external lib

Author: nomenas

CMakeLists.txt

@@ -77,6 +77,7 @@ else()
     find_package(cucumber_messages REQUIRED)
     find_package(cucumber_gherkin REQUIRED)
     find_package(fmt REQUIRED)
+    find_package(base64 REQUIRED)
 
     if (CCR_BUILD_TESTS)
         find_package(yaml-cpp REQUIRED)

external/tobiaslocker/base64/CMakeLists.txt

@@ -1,4 +1,8 @@
-# https://github.com/tobiaslocker/base64/tree/8d96a2a737ac1396304b1de289beb3a5ea0cb752
+FetchContent_Declare(
+	tobiaslocker_base64
+	GIT_REPOSITORY https://github.com/tobiaslocker/base64.git
+	GIT_TAG 8d96a2a737ac1396304b1de289beb3a5ea0cb752
+)
+
+FetchContent_MakeAvailable(tobiaslocker_base64)
 
-add_library(base64 INTERFACE)
-target_include_directories(base64 INTERFACE include)