clean some old file, a new start.
add a logo.
add some example and modified readme
nothing but dirty commit.
read_token() and parse() modify.
add a new logo for hisp.
add hvector.
modified readme.md
Update README.md

add a logo.
add some eval and apply function.
add reference in readme.
add reference in README.
add a terms spec.
add hp_string_to_symbol and hp_symbol_to_string.
update license.
add string until.
modify typesize.c
small update
just update.
structure update.