Add an operator privilege to allow overriding drop codes.

Closes #392

data/anope.example.conf

@@ -756,6 +756,7 @@ log
  *  chanserv/auspex               - Can see any information with /CHANSERV INFO
  *  chanserv/no-register-limit    - May register an unlimited number of channels and nicknames
  *  chanserv/kick                 - Can kick and ban users from channels through ChanServ
+ *  chanserv/drop/override        - Allows dropping channels without using a confirmation code
  *  memoserv/info                 - Can see any information with /MEMOSERV INFO
  *  memoserv/set-limit            - Can set the limit of max stored memos on any user and channel
  *  memoserv/no-limit             - Can send memos through limits and throttles
@@ -764,6 +765,7 @@ log
  *  nickserv/cert                 - Can modify other users certificate lists
  *  nickserv/confirm              - Can confirm other users nicknames
  *  nickserv/drop                 - Can drop other users nicks
+ *  nickserv/drop/override        - Allows dropping nicks without using a confirmation code
  *  nickserv/recover              - Can recover other users nicks
  *  operserv/config               - Can modify services's configuration
  *  operserv/oper/modify          - Can add and remove operators with at most the same privileges

modules/chanserv/cs_drop.cpp

@@ -50,7 +50,7 @@ public:
 		}
 
 		auto *code = dropcode.Get(ci);
-		if (params.size() < 2 || !code || !code->equals_ci(params[1]))
+		if (params.size() < 2 || ((!code || !code->equals_ci(params[1])) && (!source.HasPriv("chanserv/drop/override") || params[1] != "override")))
 		{
 			if (!code)
 			{

modules/nickserv/ns_drop.cpp

@@ -58,7 +58,7 @@ public:
 		}
 
 		auto *code = dropcode.Get(na);
-		if (params.size() < 2 || !code || !code->equals_ci(params[1]))
+		if (params.size() < 2 || ((!code || !code->equals_ci(params[1])) && (!source.HasPriv("nickserv/drop/override") || params[1] != "override")))
 		{
 			if (!code)
 			{