Try experimental GMPL extensions online

Hello !

Try it online here https://meimporta.eu/myglpk-ext

After looking around and with the help of the author of 
https://www.strandmark.net/wasm/glpk.html I managed to compile 
https://github.com/mingodad/GLPK/tree/local-set-param to wasm and make 
it available here https://meimporta.eu/myglpk-ext for anyone to 
experiment with the extensions I made to GMPL/glpsol and if possible 
give feedback/suggestion/comment.

Cheers !