GraphQL - Implement roster category

[Premwoik]

This PR addresses MIM-1605 and implements roster category for both user and admin.

This implementation reuse roster commands from mod_commands (used by admin and user Rest API) and extracts those functions to the new mod_roster_api module.

There is also a service_admin_extra_roster module that delivers commands for CTL, and I tried to implement the most useful functionality in GraphQL with the use of functions proposed by Rest API. The roster functions used by extra roster commands are undocumented and seem to be older. Also, the extra roster API is a little bit different from the Rest API, so I left it unchanged.

[codecov]

Codecov Report

Merging #3586 (364b321) into feature/graphql (5da0e04) will increase coverage by 0.03%.
The diff coverage is 97.56%.

@@                 Coverage Diff                 @@
##           feature/graphql    #3586      +/-   ##
===================================================
+ Coverage            81.39%   81.43%   +0.03%     
===================================================
  Files                  463      469       +6     
  Lines                33141    33265     +124     
===================================================
+ Hits                 26976    27090     +114     
- Misses                6165     6175      +10     

Impacted Files	Coverage Δ
src/admin_extra/service_admin_extra_roster.erl	87.41% <ø> (ø)
src/graphql/mongoose_graphql.erl	91.11% <ø> (ø)
src/mod_roster.erl	78.75% <ø> (ø)
src/mod_commands.erl	92.59% <94.44%> (-0.21%)	⬇️
src/mod_roster_api.erl	94.73% <94.73%> (ø)
.../graphql/admin/mongoose_graphql_admin_mutation.erl	100.00% <100.00%> (ø)
src/graphql/admin/mongoose_graphql_admin_query.erl	100.00% <100.00%> (ø)
...l/admin/mongoose_graphql_roster_admin_mutation.erl	100.00% <100.00%> (ø)
...phql/admin/mongoose_graphql_roster_admin_query.erl	100.00% <100.00%> (ø)
src/graphql/mongoose_graphql_enum.erl	72.00% <100.00%> (+13.17%)	⬆️
... and 18 more

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[chrzaszcz]

Looks good, a huge amount of good code 👍

[mongoose-im]

small_tests_24 / small_tests / 364b321
Reports root / small

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small_tests_23 / small_tests / 364b321
Reports root / small

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dynamic_domains_pgsql_mnesia_23 / pgsql_mnesia / 364b321
Reports root/ big
OK: 2915 / Failed: 0 / User-skipped: 133 / Auto-skipped: 0

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dynamic_domains_mysql_redis_24 / mysql_redis / 364b321
Reports root/ big
OK: 2898 / Failed: 0 / User-skipped: 150 / Auto-skipped: 0

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dynamic_domains_pgsql_mnesia_24 / pgsql_mnesia / 364b321
Reports root/ big
OK: 2915 / Failed: 0 / User-skipped: 133 / Auto-skipped: 0

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ldap_mnesia_23 / ldap_mnesia / 364b321
Reports root/ big
OK: 1618 / Failed: 0 / User-skipped: 427 / Auto-skipped: 0

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ldap_mnesia_24 / ldap_mnesia / 364b321
Reports root/ big
OK: 1618 / Failed: 0 / User-skipped: 427 / Auto-skipped: 0

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internal_mnesia_24 / internal_mnesia / 364b321
Reports root/ big
OK: 1664 / Failed: 0 / User-skipped: 381 / Auto-skipped: 0

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dynamic_domains_mssql_mnesia_24 / odbc_mssql_mnesia / 364b321
Reports root/ big
OK: 2915 / Failed: 0 / User-skipped: 133 / Auto-skipped: 0

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mysql_redis_24 / mysql_redis / 364b321
Reports root/ big
OK: 3284 / Failed: 0 / User-skipped: 147 / Auto-skipped: 0

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elasticsearch_and_cassandra_24 / elasticsearch_and_cassandra_mnesia / 364b321
Reports root/ big
OK: 1972 / Failed: 0 / User-skipped: 382 / Auto-skipped: 0

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pgsql_mnesia_23 / pgsql_mnesia / 364b321
Reports root/ big
OK: 3289 / Failed: 0 / User-skipped: 142 / Auto-skipped: 0

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mssql_mnesia_24 / odbc_mssql_mnesia / 364b321
Reports root/ big
OK: 3289 / Failed: 0 / User-skipped: 142 / Auto-skipped: 0

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riak_mnesia_24 / riak_mnesia / 364b321
Reports root/ big
OK: 1820 / Failed: 0 / User-skipped: 379 / Auto-skipped: 0

[chrzaszcz]

All looking good!