Add tables for v2v migration

[bzwei]

ManageIQ/manageiq-design#36

[bzwei]

@miq-bot assign @Fryguy
cc @gmcculloug

[Fryguy]

As discussed

• drop the legit column
• change comments from text to string
• index on v2v_mapping_items should be on v2v_mapping_id instead
• drop the last migration and put it into service_resource instead
• add options as json column to both tables
• change the names to transformation_mappings and transformation_mapping_items (don't forget the file names)

[miq-bot]

Checked commit bzwei@d9de151 with ruby 2.3.3, rubocop 0.52.0, haml-lint 0.20.0, and yamllint 1.10.0
3 files checked, 2 offenses detected

db/migrate/20171219151634_create_transformation_mapping_items.rb

• ❗ - Line 9, Col 7 - Style/MethodCallWithArgsParentheses - Use parentheses for method calls with arguments.

db/migrate/20171219161635_create_transformation_mappings.rb

• ❗ - Line 8, Col 7 - Style/MethodCallWithArgsParentheses - Use parentheses for method calls with arguments.

[simaishi]

Gaprindashvili backport details:

$ git log -1
commit c3d2c7c15e7cb634559c8ddbd8817f29c9cb7c5a
Author: Jason Frey <fryguy9@gmail.com>
Date:   Thu Jan 18 16:27:42 2018 -0500

    Merge pull request #149 from bzwei/v2v_schema
    
    Add tables for v2v migration
    (cherry picked from commit 69e98a69cba8eee9fab87928cc54005bdf87f96a)

[gmcculloug]

@miq-bot add_label transformation