Ezhil-Lang accepts input in UTF-8 or TSCII

Today I am submitting a change that enables the support for multiple encoding files in Ezhil interpreter. Primary motivation is to address some thinly veiled announcement of a new programming language – and simultaneously – a criticism of Ezhil interpreter published as part of INFITT 2014 proceedings. This change should put things to rest.

 We will accept programs written in other encoding like TSCII to demonstrate Ezhil is not limited by encoding.

Our internal encoding will continue to be UTF-8.

Ideally we may support any encoding capable of conversion into Unicode, via the open-tamil library or other freely available sources.