feat: primitive comment block parser

Cargo.lock

@@ -0,0 +1,21 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "anyhow"
+version = "1.0.100"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a23eb6b1614318a8071c9b2521f36b424b2c83db5eb3a0fead4a6c0809af6e61"
+
+[[package]]
+name = "apidoc"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "apidoc_parser",
+]
+
+[[package]]
+name = "apidoc_parser"
+version = "0.1.0"