Added StringMatcher.java

[ENate]

Updated the BoxProviderImpl.java File, by replacing the following deprecated interface

with a new StringMatcher.javainspired by Piotr's v0.24 copy.

[ENate]

Hi,
I do not know if there is anyone still in charge of this awesome plugin. I updated the class as shown above and it works fine. Maybe further updates can be made if there is willingness to support the plugin. Thanks.

[AlexisDrogoul]

Hi -- actually we are still using it as part of a larger project. I'd be happy to contribute if anyone is willing to revive EditBox :)

[ENate]

I actually opened a PR on a StringMatcher issue in recent Eclipse JEE versions. Maybe a starting point in case someone checks it. Lets hope someone can accept the PR. Otherwise, a new repo maybe the way to revive it! Thanks