Add inih submodule, build with project, update CMake to reflect changes

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "deps/vector"]
 	path = deps/vector
 	url = https://github.com/goldsborough/vector.git
+[submodule "deps/inih"]
+	path = deps/inih
+	url = https://github.com/benhoyt/inih.git

CMakeLists.txt

@@ -18,32 +18,24 @@ find_package(PkgConfig QUIET)
 
 add_executable(${PROJECT_NAME}
 	src/main.c
+	deps/inih/ini.c
 	deps/vector/vector.c
 )
 
 if(PkgConfig_FOUND)
-	pkg_check_modules(INIH REQUIRED inih)
 	pkg_check_modules(MICROHTTPD REQUIRED libmicrohttpd)
 	pkg_check_modules(MXML REQUIRED mxml)
 
 	target_include_directories(${PROJECT_NAME} PRIVATE
-		${INIH_INCLUDE_DIRS}
 		${MICROHTTPD_INCLUDE_DIRS}
 		${MXML_INCLUDE_DIRS}
 	)
 
 	target_link_libraries(${PROJECT_NAME} PRIVATE
-		${INIH_LIBRARIES}
 		${MICROHTTPD_LIBRARIES}
 		${MXML_LIBRARIES}
 	)
 else()
-	find_path(INIH_INCLUDE_DIR ini.h)
-	find_library(INIH_LIBRARY NAMES inih libinih)
-	if(NOT INIH_INCLUDE_DIR OR NOT INIH_LIBRARY)
-		message(FATAL_ERROR "inih not found")
-	endif()
-
 	find_path(MICROHTTPD_INCLUDE_DIR microhttpd.h)
 	find_library(MICROHTTPD_LIBRARY NAMES microhttpd libmicrohttpd)
 	if(NOT MICROHTTPD_INCLUDE_DIR OR NOT MICROHTTPD_LIBRARY)
@@ -57,13 +49,11 @@ else()
 	endif()
 
 	target_include_directories(${PROJECT_NAME} PRIVATE
-		${INIH_INCLUDE_DIR}
 		${MICROHTTPD_INCLUDE_DIR}
 		${MXML_INCLUDE_DIR}
 	)
 
 	target_link_libraries(${PROJECT_NAME} PRIVATE
-		${INIH_LIBRARY}
 		${MICROHTTPD_LIBRARY}
 		${MXML_LIBRARY}
 	)