Added compressed WIF to EC_key function
Support for compressed WIF format

the generator now optional outputs compressed WIF
and compressed EC_point output.
Combining the points accepts WIF and compressed WIF input format.
privtype and adresstype support

the -X can be used for alternate adresses.
-X 0 --> Bitcoin
-X 48 --> Litecoin
By default the privtype for the WIF adress is adresstype + 128.
Some newer cryptocoins do not have this fixed 128 offset anymore
the -p flag can be used to overrule the +128 and set a fixed privtype
for the WIF adress generation
added privtype as inline command

privtype is used for WIF key generation.
By default this is adress type (-X) + 128.
This can be overruled if the default offset is not valid for your coin.
AVX support switch now in combination with a define.