includes: Added documentation to the rest of the std and hex library

includes/hex/http.pat

@@ -2,8 +2,17 @@
 
 #include <hex/impl/imhex_check.pat>
 
+/*!
+    Library to do HTTP requests
+*/
+
 namespace hex::http {
 
+    /**
+        Performs a HTTP GET request to the given URL and returns the response body
+        @param url URL to perform the request to
+        @return Response body
+    */
     fn get(str url) {
         return builtin::hex::http::get(url);
     };