Upgrade to .NetStandard2.0

[FraserGreenroyd]

Fixes #311

[FraserGreenroyd]

@BHoMBot check project-compliance

[bhombot-ci]

@FraserGreenroyd to confirm, the following actions are now queued:

• check project-compliance

There are 3 requests in the queue ahead of you.

[bhombot-ci]

Please be advised that the check with reference 12058720908 has more than 50 annotations of notes. API limitations restrict annotations to 50. You may need to rerun this check to obtain the next set when you make changes. At the time of reporting this check, there are 1 additional annotations waiting, made up of 1 errors and 0 warnings.

[bhombot-ci]

@FraserGreenroyd fix requested for project compliance.

The errors with the CSProject (.csproj) files have been recorded as annotations on the checks tab.

I will apply the fixes to every case detailed on the checks tab with the exception of any references to the target framework. I am unable to provide fixes to the Target Framework automatically, these will need to be performed manually. If you want to perform the fixes in a different manner please resolve this manually and rerun the check.

If you are happy for me to go ahead and perform this action, please reply with:

@BHoMBot fix project file ref. 12058720908

[FraserGreenroyd]

@BHoMBot fix project file ref. 12058720908

[bhombot-ci]

@FraserGreenroyd I have queued up your request to fix the csproj file(s). There are 18 requests in the queue ahead of you.

[FraserGreenroyd]

@BHoMBot check project-compliance

[bhombot-ci]

@FraserGreenroyd to confirm, the following actions are now queued:

• check project-compliance

There are 23 requests in the queue ahead of you.

[bhombot-ci]

@FraserGreenroyd I am now going to fix the project compliance in accordance with the annotations previously made.

[bhombot-ci]

@FraserGreenroyd to confirm I have now resolved the project compliance issues and pushed a commit to this Pull Request.

[michaelhoehn]

@BHoMBot check required

[bhombot-ci]

@michaelhoehn to confirm, the following actions are now queued:

• check code-compliance
• check documentation-compliance
• check project-compliance
• check core
• check null-handling
• check serialisation
• check versioning
• check installer

There are 57 requests in the queue ahead of you.

[michaelhoehn]

Approving based on functionality. I'm happy with my tests and am happy to see this merged.

[bhombot-ci]

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

[FraserGreenroyd]

@BHoMBot check copyright-compliance
@BHoMBot check dataset-compliance
@BHoMBot check versioning
@BHoMBot check installer
@BHoMBot check ready-to-merge

[bhombot-ci]

@FraserGreenroyd to confirm, the following actions are now queued:

• check copyright-compliance
• check dataset-compliance
• check versioning
• check installer
• check ready-to-merge

There are 33 requests in the queue ahead of you.

[FraserGreenroyd]

@BHoMBot check ready-to-merge

[bhombot-ci]

@FraserGreenroyd to confirm, the following actions are now queued:

• check ready-to-merge

There are 4 requests in the queue ahead of you.