[BW]: fixes to found bugs

See merge request !33

- defined vw_hive_posts to simplify queries and eliminate joins at query side
- fixed fatal bug in special characters escaping leading to modification of post body, title etc
- fixed bug in querying for root_title in condnser_api/tags_api get_comment_discussions_by method family
- fixed bug in querying for post url
- eliminated unneeded fields in _condenser_post_object causing returning not needed additional data
- tags_api group enabled in 5M smokest

Hivemind CI implementation

See merge request !32

Added git versioning to the build process

Preliminary Hivemind ci

See merge request !31

api tests started with cmake

See merge request !29

Updated version of tests_api

See merge request !27

Dk api fixes

See merge request !26

- Added missing awaits,
- Fix for `datetime` is not JSON serializable

Fixed obvious and not so obvious errors in SQL and python code.

Version of tests_api submodule bumped to 29f1d442497f72108cb4bdf22f1984442cd5162d

See merge request !24

Dk issue 3 pyresttests

See merge request !20

Merge branch 'dk-issue-3-pyresttests' of gitlab.syncad.com:hive/hivemind into dk-issue-3-pyresttests

Added patterns for bridge api tests. Tests passes on production.

- Added missing output columns for query used at implementation of get_ranked_posts,
- Eliminated slow subquery, replaced with inner join

- fixed bugs in SQL query (typos, broken table aliases)
- used joins to eliminate 3x queries to hive_posts_data
- added missing author_rep output column in the query

[JES] Fix a bug on checking for last update time. If the initial update time was never set, the check will fail

Fix for reblog operation in custom_op

See merge request !19

- Fixed returning None type as a result of processing reblog operation.
- Added logging to log this error in the future (most likely will log
  nothing).

- added empty pattern files for test data

Files will be filled with data in next commits.

- test definitions are now complete,
- benchmark definitions are now complete,

Now we need to add reference json data for tests (in next commits).

- updated tests bodies,
- added benchmarks for some API,

More test and benchmarks in next commit.

[JES] Add a limit on the get_discussion call to only return at most 2000 posts/comments. There are some posts with thousands of children, and requesting those posts tends to cause the hivemind server to hang while executing a large query. This should prevent that

This reverts commit abf88ff6

[JES] Add a limit on the get_discussion call to only return at most 2000 posts/comments. There are some posts with thousands of children, and requesting those posts tends to cause the hivemind server to hang while executing a large query. This should prevent that

Dk issue 3 concurrent block query rebase

See merge request !16