[MacPorts] #53337: py-cartopy: update to 0.14.3 and add support for python36

[MacPorts]

#53337: py-cartopy: update to 0.14.3 and add support for python36
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 Reporter:  tenomoto     |      Owner:  petrrr
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:
 Keywords:               |       Port:  py-cartopy, py-epsg, py-gdal, py-
                         |  owslib, py-pep8, py-pyproj, py-pyshp, py-
                         |  shapely
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 See the patch.

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Ticket URL: <https://trac.macports.org/ticket/53337>
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