add missing db config options

src/main/java/com/gmail/nossr50/config/hocon/database/ConfigCategoryDatabase.java

@@ -17,4 +17,10 @@ public class ConfigCategoryDatabase {
 
     @Setting(value = "Table_Prefix", comment = "The Prefix that will be used for tables in your DB")
     private String tablePrefix;
+
+    @Setting(value = "Max_Connections", comment = "This setting is the max simultaneous MySQL/MariaDB connections allowed at a time, this needs to be high enough to support multiple player logins in quick succession")
+    private ConfigCategoryMaxConnections configCategoryMaxConnections;
+
+    @Setting(value = "Max_Pool_Size", comment = "This setting is the max size of the pool of cached connections that we hold at any given time.")
+    private ConfigCategoryMaxPoolSize configCategoryMaxPoolSize;
 }

src/main/java/com/gmail/nossr50/config/hocon/database/ConfigCategoryMaxConnections.java

@@ -0,0 +1,18 @@
+package com.gmail.nossr50.config.hocon.database;
+
+import ninja.leaping.configurate.objectmapping.Setting;
+import ninja.leaping.configurate.objectmapping.serialize.ConfigSerializable;
+
+@ConfigSerializable
+public class ConfigCategoryMaxConnections {
+
+    @Setting(value = "Misc")
+    private int misc;
+
+    @Setting(value = "Load")
+    private int load;
+
+    @Setting(value = "Save")
+    private int save;
+
+}

src/main/java/com/gmail/nossr50/config/hocon/database/ConfigCategoryMaxPoolSize.java

@@ -0,0 +1,16 @@
+package com.gmail.nossr50.config.hocon.database;
+
+import ninja.leaping.configurate.objectmapping.Setting;
+import ninja.leaping.configurate.objectmapping.serialize.ConfigSerializable;
+
+@ConfigSerializable
+public class ConfigCategoryMaxPoolSize {
+    @Setting(value = "Misc")
+    private int misc;
+
+    @Setting(value = "Load")
+    private int load;
+
+    @Setting(value = "Save")
+    private int save;
+}