feat(language-service): [ivy] wrap ngtsc to handle typecheck files (#36930)

This commit adds a Compiler interface that wraps the actual ngtsc
compiler. The language-service specific compiler manages multiple
typecheck files using the Project interface, creating and adding
ScriptInfos as necessary.

This commit also adds `overrideInlineTemplate()` method to the mock
service so that we could test the Compiler diagnostics feature.

PR Close #36930

packages/language-service/ivy/compiler/BUILD.bazel

@@ -0,0 +1,15 @@
+load("//tools:defaults.bzl", "ts_library")
+
+package(default_visibility = ["//packages/language-service/ivy:__pkg__"])
+
+ts_library(
+    name = "compiler",
+    srcs = glob(["*.ts"]),
+    deps = [
+        "//packages/compiler-cli",
+        "//packages/compiler-cli/src/ngtsc/core",
+        "//packages/compiler-cli/src/ngtsc/file_system",
+        "//packages/compiler-cli/src/ngtsc/typecheck",
+        "@npm//typescript",
+    ],
+)