Change targets from list to map

[yonaskolb]

At the moment targets is list. That was done to preserve the order of generated targets in the xcode project.
There would be some upsides to making it a map of names to targets however:

• the include feature could edit and merge targets by name
• more natural yaml styl
• enforce the target name
• better visual seperation

The points are very minor other than the first one which is a real consideration.
Is having the order of targets in the project worth it? Thoughts anyone?

Here is a visual difference

list - Array

targets:
  - name: MyTarget
    platform: iOS
    type: application
  - name: MyFramework
    platform: iOS
    type: framework

map - Dictionary

targets:
  MyTarget:
    platform: iOS
    type: application
  MyFramework:
    platform: iOS
    type: framework 

In either case targets in the ProjectSpec struct would still be an array, this just affects yaml

[yonaskolb]

Thoughts @pepibumur?

[yonaskolb]

In comparison the Swift Package Manager seems to generate the target list randomly also, even though they are defined as an array in Package.swift

[ImLaufderZeit]

map - Dictionary seems more natural and better visually, personally.
If you could control structure of group targets in File Navigator in Xcode, even better. Off-topic in this issue though...

[pepicrft]

@yonaskolb in my experience working with multiple projects I don't think the order of the targets doesn't matter a lot. I see more value in making it more readable and more yaml-natural