[docs] Fix schemata version and update nodeos plugins

[lparisc]

Change Description

Resolves devrel 1034, 1039, 1040, 1041

• Fix schemata version references to actual release version
• Remove test_control_plugin and test_control_api_plugin
• Add blockvault docs and plugin client api C++ reference
• Update various nodeos plugins options to release version

Change Type

Select ONE:

• Documentation

• Stability bug fix

• Other

• Other - special case

Testing Changes

Select ANY that apply:

• New Tests

• Existing Tests

• Test Framework

• CI System

• Other

Consensus Changes

• Consensus Changes

API Changes

• API Changes

Documentation Additions

• Documentation Additions