Add solution templates via packs: (add <template> sub-element to <csolution> element)

[ReinhardKeil]

IDE such as Keil Studio, offer templates to start new projects.

Currently the standard templates support devices that are compliant with the vanilla CMSIS specification. However there are reasons to deviate from this method:

• Devices are using a generator tool such as CubeMX for configuration.
• Devices need a more complicated setup (i.e. external memory systems) that result in more template choices.

Enabling this flexibility in an IDE requires a method to define device specific templates as outlined in this proposal:

/package/csolution/template

A template section provides device or board specific project templates for starting new csolution projects.

Parent	Chain
template	/package/csolution

Attributes	Description	Type	Use
name	Name of the template	xs:string	required
path	Path to the directory that contains the template	xs:string	required
file	Name of the *.csolution.yml file (optional with relative path to the directory specified with path)	xs:string	required
copy-to	Path that used to copy the template into the csolution project (default is attribute path)	xs:string	optional
condition	id of a condition. The template is available and will be listed only when the filter condition is true. (Note: no component dependencies are evaluated.	xs:string	optional

Child Elements	Description	Type	Occurrence
description	Briefly documents the purpose and scope of the clayer (maximum 256 characters, recommended 128 characters).	BriefDescType	1

Examples:

<csolution> 
  <template name="Basic csolution project" path="templates/blank" file="Blank.csolution.yml" copyto="Blank">
    <description>Create a basic project with empty main function</description>
  </template>
  <template name="TrustZone csolution project" path="templates/trustzone" file="TrustZone.csolution.yml" copyto="TrustZone">
    <description>Create a basic solution with secure and non-secure projects</description>
  </template>
</csolution>