XcodeGen: Rename Common-*.xconfig files to Project-*.xcconfig

to better reflect their purpose

Config/Project-Debug.xcconfig

@@ -0,0 +1,39 @@
+// 
+// Copyright 2021 Vector Creations Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+// This file defines project settings for Debug.
+// Targets (App, extensions) xcconfig files automatically include it for Debug build.
+
+#include "Project.xcconfig"
+#include "Project-Warnings.xcconfig"
+
+ONLY_ACTIVE_ARCH = YES
+COPY_PHASE_STRIP = NO
+ENABLE_TESTABILITY = YES
+MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE
+
+SWIFT_OPTIMIZATION_LEVEL = -Onone
+SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG
+
+GCC_OPTIMIZATION_LEVEL = 0
+GCC_DYNAMIC_NO_PIC = NO
+GCC_PREPROCESSOR_DEFINITIONS = DEBUG=1 $(inherited)
+GCC_SYMBOLS_PRIVATE_EXTERN = NO
+
+
+// Code signing: Use the development team for all targets
+CODE_SIGN_IDENTITY = iPhone Developer
+CODE_SIGN_STYLE = Automatic