feat: new EcsactUnrealCodgen tool (#20)

Author: zaucy

Tools/EcsactUnrealCodegen/.bazelrc

@@ -0,0 +1,2 @@
+common --enable_bzlmod
+try-import %workspace%/user.bazelrc

Tools/EcsactUnrealCodegen/.gitignore

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+/bazel-*
+/external
+/compile_commands.json
+*.bazel.lock
+user.bazelrc

Tools/EcsactUnrealCodegen/BUILD.bazel

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+load("@aspect_bazel_lib//lib:transitions.bzl", "platform_transition_filegroup")
+load("@rules_cc//cc:defs.bzl", "cc_binary")
+
+cc_binary(
+    name = "EcsactUnrealCodegen",
+    srcs = ["EcsactUnrealCodegen.cpp"],
+    copts = [
+        "-std=c++20",
+        "-fexperimental-library",
+    ],
+    linkopts = select({
+        "//conditions:default": [],
+        "@platforms//os:windows": [
+            "-lWs2_32",
+            "-lMswsock",
+            "-lBcrypt",
+        ],
+    }),
+    deps = [
+        "@boost.process",
+        "@boost.program_options",
+    ],
+)
+
+PLATFORMS = [
+    "@zig_sdk//platform:windows_amd64",
+    "@zig_sdk//platform:linux_amd64",
+    "@zig_sdk//platform:linux_arm64",
+    "@zig_sdk//platform:darwin_amd64",
+    "@zig_sdk//platform:darwin_arm64",
+]
+
+[
+    platform_transition_filegroup(
+        name = "EcsactUnrealCodegen-" + platform.split(":")[1],
+        srcs = [":EcsactUnrealCodegen"],
+        target_platform = platform,
+    )
+    for platform in PLATFORMS
+]
+
+filegroup(
+    name = "AllPlatforms",
+    srcs = ["EcsactUnrealCodegen-" + platform.split(":")[1] for platform in PLATFORMS],
+)