feat(protocols): Add more control over gathering additional information (#180)

* protocols: Add more control over gathering additional information

Adds GatherToggle which allows choosing the behaviour for how the query
handles fetching additional information. The choices are:
- DontGather - Don't attempt to fetch information
- AttemptGather - Try to fetch the information but ignore errors
- Required - Try to fetch information and fail if it errors

A handy macro was also added to utils to dispatch additional queries
based on a GatherToggle value.

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* protocols: Improve GatherToggle enum names

Co-Authored-By: Cain <75994858+cainthebest@users.noreply.github.com>
Co-Authored-By: CosminPerRam <cosmin.p@live.com>

* Add/Update badge

---------

Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: Cain <75994858+cainthebest@users.noreply.github.com>
Co-authored-by: CosminPerRam <cosmin.p@live.com>

crates/lib/src/protocols/valve/protocol.rs

@@ -19,7 +19,7 @@ use crate::{
         },
     },
     socket::{Socket, UdpSocket},
-    utils::{retry_on_timeout, u8_lower_upper},
+    utils::{maybe_gather, retry_on_timeout, u8_lower_upper},
     GDErrorKind::{BadGame, Decompress, UnknownEnumCast},
     GDResult,
 };
@@ -470,13 +470,13 @@ fn get_response(
 
     Ok(Response {
         info,
-        players: match gather_settings.players {
-            false => None,
-            true => Some(client.get_server_players(&engine, protocol)?),
-        },
-        rules: match gather_settings.rules {
-            false => None,
-            true => Some(client.get_server_rules(&engine, protocol)?),
-        },
+        players: maybe_gather!(
+            gather_settings.players,
+            client.get_server_players(&engine, protocol)
+        ),
+        rules: maybe_gather!(
+            gather_settings.rules,
+            client.get_server_rules(&engine, protocol)
+        ),
     })
 }