Hackdna/update file storage

[hackdna]

Toward #3052:

• set default data volume size to 1GB and type to gp2
• simplify init.pp
• simplify file store and solr data dir config
• create file store dir using Puppet
• create file import dir only in Vagrant

[codecov]

Codecov Report

Merging #3269 into develop will decrease coverage by 1.26%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop    #3269      +/-   ##
===========================================
- Coverage    66.63%   65.37%   -1.27%     
===========================================
  Files          386      383       -3     
  Lines        26635    25153    -1482     
  Branches       976      946      -30     
===========================================
- Hits         17749    16444    -1305     
+ Misses        8886     8709     -177

Impacted Files	Coverage Δ
refinery/file_store/tasks.py	58.37% <ø> (ø)	⬆️
refinery/file_store/test_utils.py	100% <ø> (ø)	⬆️
refinery/file_store/models.py	79.08% <ø> (-4.63%)	⬇️
refinery/file_store/utils.py	68.93% <ø> (ø)	⬆️
refinery/ui/source/js/commons/services/group.js	66.66% <0%> (-22.23%)	⬇️
.../ui/source/js/data-set-about/ctrls/details-ctrl.js	42.46% <0%> (-14.02%)	⬇️
refinery/core/serializers.py	81.25% <0%> (-10.99%)	⬇️
refinery/core/views.py	54.32% <0%> (-10.09%)	⬇️
...urce/js/file-browser/ctrls/user-perms-icon-ctrl.js	93.33% <0%> (-1.67%)	⬇️
... and 8 more

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