[Feature] GM State Change Persistance (#2328)

* [Feature] GM State Change Persistance

- Flymode and Invulnerable will now persist over zoning.

- Appended GMSpeed, Flymode and Invulnerable to the hideme message GMs see when they first login.

- Added #godmode [on/off] command to turn on or off hideme, flymode, gmspeed and invulnerable all in one shot.

- /becomenpc will now disable tells to the target player. It will also automatically disable GM States that interfere with its functionality.

- GM Command /toggle will not properly turn tells on/off

- GMs will now be notified if they are ignoring tells when they first zone-in, provided their GM flag is up.

- Added TellsOff variable to the output to #showstats

* [Bug] Fix tells when gmhideme is turned off.

* [Cleanup] Cleanup function and rename for consistancy.

Remove un-needed this->

* Tweaks

* Tweaks

* Update db_update_manifest.txt

* Move string building logic to a vector and use strings join

* Update client_packet.cpp

* Update 2022_07_28_gm_state_changes.sql

* PR comment tweaks

Co-authored-by: Akkadius <akkadius1@gmail.com>

zone/client.h

@@ -1040,6 +1040,7 @@ public:
 	void SendRules();
 
 	const bool GetGMSpeed() const { return (gmspeed > 0); }
+	const bool GetGMInvul() const { return gminvul; }
 	bool CanUseReport;
 
 	//This is used to later set the buff duration of the spell, in slot to duration.
@@ -1786,6 +1787,7 @@ private:
 	bool auto_fire;
 	bool runmode;
 	uint8 gmspeed;
+	bool gminvul;
 	bool medding;
 	uint16 horseId;
 	bool revoked;