Generate engine actor enum

[adamchalmers]

This will make it easier to implement new endpoints in the engine. Engine team won't have to update the engine actor enum, because it will be automatically generated from the modeling_api definitions.

Sample output:

    pub enum ModelingCmdWithResp {
        ///Start a new path.
        StartPath {
            params: kittycad_modeling_cmds::each_cmd::StartPath,
            response_sender: ::tokio::sync::oneshot::Sender<()>,
        },
        ///Move the path's "pen".
        MovePathPen {
            params: kittycad_modeling_cmds::each_cmd::MovePathPen,
            response_sender: ::tokio::sync::oneshot::Sender<()>,
        },
        /**Extend a path by adding a new segment which starts at the path's "pen".
If no "pen" location has been set before (via `MovePen`), then the pen is at the origin.*/
        ExtendPath {
            params: kittycad_modeling_cmds::each_cmd::ExtendPath,
            response_sender: ::tokio::sync::oneshot::Sender<()>,
        },
        ///Command for extruding a solid 2d.
        Extrude {
            params: kittycad_modeling_cmds::each_cmd::Extrude,
            response_sender: ::tokio::sync::oneshot::Sender<()>,
        },
        ///Command for revolving a solid 2d.
        Revolve {
            params: kittycad_modeling_cmds::each_cmd::Revolve,
            response_sender: ::tokio::sync::oneshot::Sender<()>,
        },
        ///Command for revolving a solid 2d about a brep edge
        RevolveAboutEdge {
            params: kittycad_modeling_cmds::each_cmd::RevolveAboutEdge,
            response_sender: ::tokio::sync::oneshot::Sender<()>,
        },
        ///Closes a path, converting it to a 2D solid.
        ClosePath {
            params: kittycad_modeling_cmds::each_cmd::ClosePath,
            response_sender: ::tokio::sync::oneshot::Sender<()>,
        },
        ///Camera drag started.
        CameraDragStart {
            params: kittycad_modeling_cmds::each_cmd::CameraDragStart,
            response_sender: ::tokio::sync::oneshot::Sender<()>,
        },
        ///Camera drag continued.
        CameraDragMove {
            params: kittycad_modeling_cmds::each_cmd::CameraDragMove,
            response_sender: ::tokio::sync::oneshot::Sender<
                ::kittycad_modeling_cmds::output::CameraDragMove,
            >,
        },
        ///Camera drag ended
        CameraDragEnd {
            params: kittycad_modeling_cmds::each_cmd::CameraDragEnd,
            response_sender: ::tokio::sync::oneshot::Sender<
                ::kittycad_modeling_cmds::output::CameraDragEnd,
            >,
        },
}

[codecov]

Codecov Report

Attention: Patch coverage is 49.41176% with 43 lines in your changes are missing coverage. Please review.

❗ No coverage uploaded for pull request base (main@2e1b19a). Click here to learn what that means.

Files	Patch %	Lines
modeling-cmds/src/ok_response.rs	4.76%	40 Missing ⚠️
modeling-cmds/src/shared.rs	0.00%	2 Missing ⚠️
modeling-cmds-macros/src/modeling_cmd_enum.rs	97.56%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #275   +/-   ##
=======================================
  Coverage        ?   55.48%           
=======================================
  Files           ?       51           
  Lines           ?     5796           
  Branches        ?        0           
=======================================
  Hits            ?     3216           
  Misses          ?     2580           
  Partials        ?        0           

Flag	Coverage Δ
unittests	55.48% <49.41%> (?)

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