Updating Geos to 3.7 (#3617)

* Centos has no which

* month/day/year now also hashed

* Added GDAL and ported ISIS to Geos 3.6

port to geos 3.6

ported chip

updated env

env

ev

env

env

* removed uneeded contructor

env

environment

environment

environment

build

env

Asda

env

removed gdal

* unpinned opencv

force remove anaconda channel

printing conda channels

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updated env

updated ev

3.7

pinned bullet

added defaults again

hopefully this works

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* updated for centos

* updated centos env