Move plugflowpipe to baseclasses

[bravache]

The main change of this PR is to move the content of IBPSA/Fluid/FixedResistances/PlugFlowPipe.mo to IBPSA/Fluid/FixedResistances/BaseClasses/PlugFlowPipe.mo and have the internal pipe resistance element res replaceable.
The exposed class has the same behavior as previously, and the baseclass can be reused to replace the pipe resistance with a LosslessPipe.

[bravache]

@mwetter If all test passes, this is ready to merge. This brings in the MBL changes to IBPSA.

[mwetter]

@baptiste Ravache ***@***.***> : do you also want to add the discretized plug flow pipe or is there a reason to omit it?

…

On Fri, Oct 15, 2021, 11:27 AM Baptiste Ravache ***@***.***> wrote: @mwetter <https://github.com/mwetter> If all test passes, this is ready to merge. This brings in the MBL changes to IBPSA. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#1537 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAKEPOGR3YV332ZHGHCC2HTUHBXCFANCNFSM5GCQXI6Q> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[bravache]

@baptiste Ravache @.> : do you also want to add the discretized plug flow pipe or is there a reason to omit it?
…
On Fri, Oct 15, 2021, 11:27 AM Baptiste Ravache @.> wrote: @mwetter https://github.com/mwetter If all test passes, this is ready to merge. This brings in the MBL changes to IBPSA. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#1537 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAKEPOGR3YV332ZHGHCC2HTUHBXCFANCNFSM5GCQXI6Q . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

@mwetter : No reason, except that I assumed that the level of scrutiny for merging the PlugFlowPipeDiscretized would be higher, and didn't want it to hold the deployment of this branch. Also, from previous conversation, I got the idea that the discretized pipe would be a class specific to the MBL and not be included in IBPSA, but I might have misunderstood.

Do you recommend I add it now? Would I need to restart the panel review?

[mwetter]

This is ready to merge from my point of view.

[mwetter]

@Mathadon : Can you please review so we have a non-LBL reviewer.

[Mathadon]

I'm just wondering whether IBPSA/Fluid/FixedResistances/PlugFlowPipe.mo needs a new revision history? The old revision history has been copied to the base class so this 'new' model could use a new revision history.

[mwetter]

@Mathadon : Thanks, I updated the revision history and will merge it after the tests pass.

[mwetter]

This closes #1538