Initialize CODEOWNERS (#19480)

Co-authored-by: Ashcon Partovi <[email protected]>

Author: 190n

.github/CODEOWNERS

@@ -0,0 +1,18 @@
+# Project
+.github/CODEOWNERS @Jarred-Sumner
+
+# Build system
+CMakeLists.txt @Electroid
+cmake/ @Electroid
+scripts/ @Electroid
+
+# CI
+.buildkite/ @Electroid
+.github/workflows/ @Electroid
+
+# Debugger protocol
+packages/bun-inspector-protocol/ @Electroid
+packages/bun-debug-adapter-protocol/ @Electroid
+
+# Tests
+test/expectations.txt @Jarred-Sumner