Fixed VirtualEnvironmentExists

[Tom-Kingstone]

NOTE: Depends on

Issues addressed by this PR

Closes #127

Added a check for if the executable it is trying to run actually exists before running.

Test files

run LBT environment installer in grasshopper.

Changelog

Additional comments

[Tom-Kingstone]

@BHoMBot check compliance @BHoMBot check core

[bhombot-ci[bot]]

@Tom-Kingstone to confirm, the following actions are now queued: - check `code-compliance` - check `documentation-compliance` - check `project-compliance` - check `branch-compliance` - check `dataset-compliance` - check `copyright-compliance` - check `core` There are 19 requests in the queue ahead of you.

[Tom-Kingstone]

@BHoMBot check compliance @BHoMBot check required

[bhombot-ci[bot]]

@Tom-Kingstone to confirm, the following actions are now queued: - check `code-compliance` - check `documentation-compliance` - check `project-compliance` - check `branch-compliance` - check `dataset-compliance` - check `copyright-compliance` - check `code-compliance` - check `documentation-compliance` - check `project-compliance` - check `core` - check `null-handling` - check `serialisation` - check `versioning` - check `installer`

[bhombot-ci[bot]]

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[bhombot-ci[bot]]

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[FraserGreenroyd]

@BHoMBot check compliance

[bhombot-ci[bot]]

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[FraserGreenroyd]

@BHoMBot check required

[bhombot-ci[bot]]

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[bhombot-ci[bot]]

The check `code-compliance` has already been run previously and recorded as a successful check. This check has not been run again at this time.

[bhombot-ci[bot]]

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[FraserGreenroyd]

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