send server brand during login

* send server brand to client

* send brand regardless of `0x02` being recieved by server or not

* send brand regardless of `0x02` being recieved by server or not
+ if statement to match previous lines

* ifdef check for brand sending

* commit main.c for ifdef check (i forgot)

* commit main.c for ifdef check (i forgot)

* change sc_pluginMessage to sc_sendPluginMessage

- added params to it for use in other cases
- other changes to fit PR reviews

* revert .gitignore

* revert unrelated changes

* send byte instead of varint for constant packet id

* gate declaration of brand string behind ifdef

* make logging consistent with codebase

---------

Co-authored-by: p2r3 <p2r3@p2r3.com>

src/globals.c

@@ -35,6 +35,11 @@ uint32_t server_ticks = 0;
 char motd[] = { "A bareiron server" };
 uint8_t motd_len = sizeof(motd) - 1;
 
+#ifdef SEND_BRAND
+  char brand[] = { "bareiron" };
+  uint8_t brand_len = sizeof(brand) - 1;
+#endif
+
 uint16_t client_count;
 
 BlockChange block_changes[MAX_BLOCK_CHANGES];