[Suggestion] Add Nexo support

[simondumalski]

Nexo is a replacement plugin for Oraxen that is maintained by the same author (Boy). Implementation should be nearly identical to the existing Oraxen support.

maven("https://repo.nexomc.com/snapshots/")
compileOnly("com.nexomc:nexo:0.1.0-dev.0")

<dependency>
    <groupId>com.nexomc</groupId>
    <artifactId>nexo</artifactId>
    <version>0.1.0-dev.0</version>
    <scope>provided</scope>
    <classifier>dev</classifier>
</dependency>

[iGabyTM]

Why not open a PR instead? 😀