Added Eaglercrack and Eaglercrack source code

Description

I added Eaglercrack also known as EaglercrackX its a website that contains things such as a nicely layed out server list and a decent amount of texture packs that can be used. All tho it only has 1 client right now called EaglercraftX which looks like the normal Eaglercraft from https://eaglercraft.com/ it might have more clients added as seen by this poll

Context

This change is required as without it it is almost impossible to find eaglercraft servers also it has lots of texture packs and by how there site is laid out nicely there is https://servers.eaglercraft.com/ but at the time of writing this it seems to be down

Types of changes

[ ] Bad / Deleted sites removal
[ ] Grammar / Markdown fixes
[X ] Content addition (sites, projects, tools, etc.)
[ ] New Wiki section

Checklist:

[X ] I have read the contribution guide.
[ X] I have made sure to search before making any changes.
[ X] My code follows the code style of this project.

fmhy / FMHYedit