build: bundle uncrustify

Uncrustify is sensitive to version changes, which causes friction for
contributors that doesn't have that exact version. It's also simpler to
download and install the correct version than to have bespoke version
checking.

cmake.deps/CMakeLists.txt

@@ -12,19 +12,9 @@ list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake" "${PROJECT_SOURCE_DI
 include(ExternalProject)
 include(CheckCCompilerFlag)
 
+include(Deps)
 include(Util)
 
-set(DEPS_CMAKE_ARGS
-  -D CMAKE_C_COMPILER=${CMAKE_C_COMPILER}
-  -D CMAKE_C_STANDARD=99
-  -D CMAKE_GENERATOR=${CMAKE_GENERATOR}
-  -D CMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
-  -D BUILD_SHARED_LIBS=OFF
-  -D CMAKE_POSITION_INDEPENDENT_CODE=ON
-  -D CMAKE_FIND_FRAMEWORK=${CMAKE_FIND_FRAMEWORK})
-
-set(DEPS_CMAKE_CACHE_ARGS -DCMAKE_OSX_ARCHITECTURES:STRING=${CMAKE_OSX_ARCHITECTURES})
-
 set_default_buildtype()
 get_property(isMultiConfig GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
 if(NOT isMultiConfig)
@@ -38,15 +28,8 @@ if(HAS_OG_FLAG)
   set(DEFAULT_MAKE_CFLAGS CFLAGS+=-Og ${DEFAULT_MAKE_CFLAGS})
 endif()
 
-set(DEPS_INSTALL_DIR "${CMAKE_BINARY_DIR}/usr")
-set(DEPS_BIN_DIR "${DEPS_INSTALL_DIR}/bin")
-set(DEPS_LIB_DIR "${DEPS_INSTALL_DIR}/lib")
-set(DEPS_BUILD_DIR "${CMAKE_BINARY_DIR}/build")
-set(DEPS_DOWNLOAD_DIR "${DEPS_BUILD_DIR}/downloads")
 set(DEPS_INCLUDE_FLAGS "-I${DEPS_INSTALL_DIR}/include -I${DEPS_INSTALL_DIR}/include/luajit-2.1")
 
-list(APPEND DEPS_CMAKE_ARGS -D CMAKE_INSTALL_PREFIX=${DEPS_INSTALL_DIR})
-
 option(USE_BUNDLED "Use bundled dependencies." ON)
 
 option(USE_BUNDLED_UNIBILIUM "Use the bundled unibilium." ${USE_BUNDLED})