Java client about smallville HOT 2 CLOSED

Should have a java client to send requests to the smallville server. The java client should have all the same features as the javascript client by also sending http requests to the smallville server.

server endpoints (some of these might be outdated): https://nickm980.github.io/smallville/server/

I've outlined most of the methods in 4b5af88 and finished writing one of them. Some work still needs to be done completing the rest of the methods

from smallville.

Finished the java client, this test class shows an example of how to use it
https://github.com/nickm980/smallville/blob/main/java-client/src/test/java/io/github/nickm980/smallville/SmallvilleClientTest.java

from smallville.