[Story] Allow user to choose between inserting NODE or merging the channel

[rkrishnasanka]

Description

Currently, 3DuF merges channels as the user creates the connection objects. This new feature should give the user the option to:

1. Insert a NODE object into the connection, split the connection into multiple pieces.
2. Merge the connections into a single connection with multiple sinks.

As the user places a new waypoint onto an existing connection, the tools should popup a dialog giving the user both options. The options should be paired with descriptive GIFs showing what functionality both the options will provide.

Additional Description:

The current connection creation process looks like this:

Jul-12-2021.13-04-24.mp4

On clicking on a different connection, this dialog should appear, giving the user the options:

1. Merge Channel
2. Insert NODE

@jkamoona Please get us a mockup for the Dialog

Acceptance Criteria:

• Unit Test
• Functional Test

[jkamoona]

#315
Mockup of the Connection Dialog: