solver::angleDimensionFunction in std::solver

Constrain the angle in the selected sector between two lines.

Name	Type	Description	Required
`lines`	[`Segment`; 2]	The ordered pair of line segments whose selected angle sector should match the value set with `==`. A line's positive direction runs from its start point to its end point; its negative direction is the reverse.	Yes
`sector`	`number(_)`	Which counterclockwise sweep about the line intersection to constrain: `1`, first line's positive direction to the second line's positive direction; `2`, second positive to first negative; `3`, first negative to second negative; or `4`, second negative to first positive.	Yes
`inverse`	`bool`	Use the counterclockwise sweep from the selected sector's end direction to its start direction. For example, a `20deg` sweep with `inverse = false` becomes `340deg` with `inverse = true`.	No
`labelPosition`	`Point2d`	The desired position of the constraint label.	No