json-smart-v1 lib for DoH and i2pcontrol

Copied from i2p.plugins.i2pcontrol.
Does not include JSON-RPC2, that stays in the plugin.
i2pcontrol checkin notes:
Smart Mini files (net.minidev.json) from:
https://github.com/netplex/json-smart-v1
commit 51e1641 on Oct 23, 2015
Essentially version 1.3.2 (1.3.1+)
Licensed Apache 2.0.
Removed as unneeded: JSONNavi.java, JSONStyleIdent.java
Not in Debian/Ubuntu
Version in Maven Central (1.0.8) is too old

LICENSE.txt

@@ -88,6 +88,10 @@ Public domain except as listed below:
    From Apache HttpClient 4.4.1 and HttpCore 4.4.1
    See licenses/LICENSE-Apache2.0.txt
 
+   json-smart-v1 1.3.1+
+   Copyright 2011 JSON-SMART authors
+   See licenses/LICENSE-Apache2.0.txt
+
 
 Router (router.jar):
 Public domain except as listed below: