Refactor with treeMngt and svgMngt in order to minimize SVG generations

[thomaspeugeot]

Migration to web socket has failed because there are too many call to SVG generation.

The architecture is clumsy. One need to reorganize with one live object for the tree management and one for the svg management.

treeMngt and wsMngt

• [ ] rename directories to tree and svg
• [ ] create treeMngt and svgMngt structs
• [ ] manage control flow

[thomaspeugeot]

Problem with the add button, the diagram file is created but the tree does not grow by one leave.

Why ?

On Need to have a probe on the tree stack

[thomaspeugeot]

Strange, it works now

[thomaspeugeot]

Use DiagramNode as a interface below PortfolioNode

type DiagramNode interface {
  GetDiagram() Diagram
}

For adding the CheckButton test wether the I/F is a DiagramNode instead of HasCheckButton