[MacPorts] #51020: vtk: update to 7.0.0 and add python35 variant

[MacPorts]

#51020: vtk: update to 7.0.0 and add python35 variant
-------------------------------+------------------------
  Reporter:  samuel.bateman@…  |      Owner:  stromnov@…
      Type:  enhancement       |     Status:  new
  Priority:  Normal            |  Milestone:
 Component:  ports             |    Version:
Resolution:                    |   Keywords:
      Port:  vtk               |
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Changes (by mf2k@…):

 * cc: stromnov@… (removed)
 * owner:  macports-tickets@… => stromnov@…
 * version:  2.3.4 =>
 * type:  update => enhancement


Comment:

 Thanks. [https://guide.macports.org/#development.patches Per the
 guidelines], please instead attach a unified diff of the Portfile so we
 can easily see what changes you are proposing.

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Ticket URL: <https://trac.macports.org/ticket/51020#comment:1>
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