not= function support (#37)

Compatible to Clojure not= function

Print pointer value instead of go address, also fix a panic in the 'f…

…uture' tests (#36)

print pointers and fix a panic when canceling a future (the code tried to get the position of a node that was of type int)

take, take-last, drop, drop-last, subvec support added

Merge branch 'main' of https://github.com/jig/lisp

try timeout is 80% (#31)

* try timeout is 80% of context timeout (20% left for catch clause code)

Co-authored-by: Francesc Orozco <Francesc.Orozco@entrust.com>

"do" not needed for side-effects in functions

Honouring scanner errors

Feature/try context timeout (#29)

* try now catches context expiration

Co-authored-by: Francesc Orozco <Francesc.Orozco@entrust.com>
Co-authored-by: Jordi Íñigo Griera <jordi.inigo@entrust.com>

Support for _ on integers; partial support of float numbers

note that there is no function on core lib to use float numbers to this moment

panic when binding count does not match lisp defined function fixed