Registered commands with some fixes and new method

[aBooDyy]

• Moved papijsp commands to another class and made it registered command instead of using the event (Credits go to Google and Clip for the register part, took it from Google and from clip's custom expansion so thank you both 😄 ). with new format for messages.
• Fixed Failed to set ScriptEngine for javascript placeholder: error, when reloading with /papijsp reload command.
• Added new method to be able to parse PAPI placeholders in your js script with js args, and the ability to compare the placeholder's value and other stuff.
• Updated the header of classes to 2019!! :p
• bumped the version to 1.4.3.

Tested the expansion on 1.12.2 (guess if it works there it will for other versions) and everything seems fine. The only issue is that when u reload with /papi reload the /papijsp list command returns 0 scripts loaded and if you reloaded with /papijsp reload it works. but for reloading with /papi reload will not return the correct value if you added new placeholders. tried to fix that with many ways, but no luck. Not sure if what i'm thinking of is the problem but if it is, afaik theres no way to solve it :(

Compiled version if anyone wants to test it: https://aboodyy.net/PAPI-Expansion-Javascript.jar

I didn't change all of that, idk whats wrong with GitHub

[aBooDyy]

• Added new method to parse relation placeholders, for the same use of the normal placeholder methods but for relation placeholders in 3e229a6

[Zendrex]

@aBo0oDyy A method for setBracketPlaceholders would be appreciated as well.

[aBooDyy]

Any reason for it?

[Zendrex]

Just consistency with the pr. Why have 1 without the other? Copy-paste with a different method from PAPI. 4 lines. Bet you someone would find a use for it. Also gotta get them commits up.

Done 663f383328302c555c4dcf4fc5ffeea227e5da4e

[aBooDyy]

What do you mean? so you want it for using papi placeholders in the js placeholder args %javascript_name_{placeholder}% ? if thats what you mean, it already parse the placeholders before passing them as args. here other than this, you can use setPAPIPlaceholder() with %% in your script with no issues.

If that's not what you want, explain exactly what do you want please.

[aBooDyy]

latest commit (a412155) just fixes the parsing of the placeholder if we used it inside of the script with %%, so to avoid that, i made it so you set the placeholder without %% in the setPAPIPlaceholder and setPAPIRelPlaceholder methods.