adding dev_environment (#615)

docs/scarpet/api/Auxiliary.md

@@ -507,6 +507,7 @@ Available options in the scarpet app space:
  * `server_whitelist` - list of players allowed to log in
  * `server_banned_players` - list of banned player names
  * `server_banned_ips` - list of banned IP addresses
+ * `server_dev_environment` - boolean indicating whether this server is in a development environment.
  
  System related properties
  * `java_max_memory` - maximum allowed memory accessible by JVM

src/main/java/carpet/script/utils/SystemInfo.java

@@ -12,6 +12,7 @@ import carpet.script.value.Value;
 import carpet.settings.ParsedRule;
 import carpet.settings.SettingsManager;
 import com.sun.management.OperatingSystemMXBean;
+import net.fabricmc.loader.api.FabricLoader;
 import net.minecraft.util.WorldSavePath;
 import net.minecraft.world.GameRules;
 
@@ -82,6 +83,7 @@ public class SystemInfo {
             }
             return whitelist;
         });
+        put("server_dev_environment", c-> new NumericValue(FabricLoader.getInstance().isDevelopmentEnvironment()));
 
         put("java_max_memory", c -> new NumericValue(Runtime.getRuntime().maxMemory()));
         put("java_allocated_memory", c -> new NumericValue(Runtime.getRuntime().totalMemory()));