improve vscode export config setting

[studavekar]

Description

When we export a project for vscode, launch.json on windows gets populated absolute path of tools

"MIDebuggerPath": "C:\\Program Files (x86)\\GNU Tools ARM Embedded\\4.9 2015q3\\bin\\arm-none-eabi-gdb.exe",

Default template point uses absolute path there as per the discussion on #10200 can vscode template be improved ?

Issue request type

[ ] Question
[x] Enhancement
[ ] Bug

[ciarmcom]

Internal Jira reference: https://jira.arm.com/browse/MBOCUSTRIA-1079

[mark-edgeworth]

PR submitted: #10997

[madchutney]

PR merged