Deliver oik blocks that were developed in oik-blocks

[bobbingwide]

The oik-blocks plugin delivers a number of blocks that could/should be part of the oik base plugin.
I want to incorporate these into the oik base plugin and make them available on wordpress.org
I'll only include the blocks if they satisfy this criteria

1. Ready for inclusion
2. Only use oik base logic

The blocks may need to undergo a prefix change from oik-blocks to oik.
This is to be consistent with blocks being transferred to other plugins: oik-css and uk-tides.
Other blocks in oik-blocks will be migrated to: oik-fields, oik-user, oik-bob-bing-wide

The oik base plugin will use the oik-blocks shared library helper functions during block registration.

[bobbingwide]

The table below summarises where the block will be served from in the future and the name of the block. The block's prefix will be the plugin slug.
Transforms will enable existing blocks and shortcodes in the Classic block to be transformed to the new block.

oik-blocks	plugin	Notes
address	oik	Must also support oik-user
blockicon	oik-blocks
blockinfo	oik-blocks
blocklist	oik-blocks
contact-form	oik	Server side rendered
countdown	oik
css	oik-css
csv	oik-bob-bing-wide
dashicon	oik-bob-bing-wide
fields	oik-fields
follow_me	oik
geshi	oik-css
github	oik-bob-bing-wide
googlemaps	oik
nivo	oik-nivo-slider
person	oik-user
search	oik-blocks
uk-tides	uk-tides
wordpress	oik-bob-bing-wide

[bobbingwide]

Oik v4.0.0 contains 6 blocks forked from oik-blocks. This includes oik/shortcode-block - the shortcode block for simple oik shortcodes.