Split StreamReader into an interface and implementation to prepare for adding another IR stream reader.

CMakeLists.txt

@@ -82,8 +82,8 @@ if(CMAKE_BUILD_TYPE MATCHES "Release")
 endif()
 
 set(CLP_FFI_JS_SRC_MAIN
-    src/clp_ffi_js/ir/decoding_methods.cpp
     src/clp_ffi_js/ir/StreamReader.cpp
+    src/clp_ffi_js/ir/UnstructuredIrStreamReader.cpp
 )
 
 set(CLP_FFI_JS_SRC_CLP_CORE

src/clp_ffi_js/.clang-format

@@ -7,7 +7,7 @@ IncludeCategories:
     Priority: 4
   # Library headers. Update when adding new libraries.
   # NOTE: clang-format retains leading white-space on a line in violation of the YAML spec.
-  - Regex: "<(emscripten|fmt|spdlog)"
+  - Regex: "<(emscripten|fmt|json|spdlog)"
     Priority: 3
   - Regex: "^<(clp)"
     Priority: 3