Merged DMP Roadmap V2.1.5

Refactor of usage dashboard (moved logic from JS to Ruby) (#2336) ...

* removed erroneous div tag

* Updated deep_copy on PLan model to set feedback_requested to false

* fixed typo in plan export

* refactored usage code to place most of the presentation logic into Rails instead of JS

finished up changes to usage

fixed eslinter issues

fixed rubocop issues

fixed additional rubocop issues

fixed issue with filter

fixed issue with totals

removed old controller test and added new usage_controller tests

added tests for new usage_helper

added usage_policy tests and pundit test helper

fixed some rubocop complaints

fixed up remaining rubocop issues

* removed opens in a new window for usage download buttons and moved org selector to below filters

* fixed some rubocop complaints in spec test

Added Stats chart for org template usage

The "No. plans by template" statistics and visualisation changes: ...

(1) The headers for the CSV for the Number of Plans by Template
             - the date column have dates in the format  'Jan 2018'
             - the template headers now display the Title of the templates
             - the Date and Count headers are capitalized.

        (2) The chart has been re-styled.
            The aspect ratio (width/height) of image is now dynamically
            set according to the selection of the month range.

        (3) Fixed broken rspec tests and rubocop errors/warnings.

        Fix for #1679.

1. stat_created_plan.to_csv with option for details by template. ...

2. details attribute for stats table #1679
3. create_created_plan_service extended with details by template
4. create_last_month_created_plan_service extended with details by
template.
5. create_or_update strategy for generating stats
6. StatCreatedPlanByTemplateController#index for graphs usage
7. month_start_date and month_end_date for OrgDateRangeable class

[RD-1679] Usage view including date input for plans by template

[#1679] monthly_range query updated

[#1679] client-side chart for plans by template

[#1679] Time picker for plans by template chart

[#1679] Download plans by template action.

deleted spec

merge conflicts fixed

[#1679] Removed JS linter warnings

[#1679] Rubocop conforming code. Drying out stat services

Started Services and Actions for #1689 (#1871) ...

StatCreatedPlan/StatJoinedUser Services and Action finished. #1689

removed comment. #1689

usage#all endpoint for all usage CSV reports. #1689

usage#all endpoint with request test associated. #1689

Removed require from files

Moved generate actions into services [#1689]

Renamed joined_user service related [#1689]

Renamed stat_created_plan action to service [#1689]

Removed action total_stat in favour of total_count_stat_service

UsageDownloadController using Org::TotalCountStatService instead of the action

rebased onto development ...

stat_created_plan_spec finished

stats table using bigint. StatJoinedUser spec done

csvable_spec done

org_date_rangeable_spec done

Actions::StatCreatedPlan::Generate spec half way done

Actions::StatCreatedPlan::Generate rspec done

Actions::StatJoinedUser::Generate spec finished

Role.with_access_flags instead of access_values_for method