Field angle: add block definitions

[rachel-fenichel]

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Component

Angle field

Problem

No response

Request

Copy block definitions into the plugin

Copy in any tooltips, mutators, extensions, and styles

Provide install functions for each block, which install all fields, mutators, and extensions necessary to use that block.

Provide an installAll function for all blocks in the plugin

• Call each individual block function

Provide any functions needed for the language generator for each block, including reserved words

Alternatives considered

No response

Additional context

No response

[rachel-fenichel]

There are no angle blocks in the core Blockly library. This issue can continue to track adding canonical angle field blocks, such as the ones defined in Blockly Games: Turtle, but is not required for v11 work.