Include ecf.filetransfer.httpclient5 in SimRel

[jonahgraham]

This is to workaround:

• Not able to communicate through authenticated proxy eclipse-equinox/p2#381

And to enable:

• Exclude httpclientjava eclipse-packaging/packages#81

in 2023-12 M3.

The Eclipse Platform is expected to contribute this for RC1 but including this from ECF allows us to start testing this in 2023-12 M3

[jonahgraham]

@merks WDYT? Is this useful to workaround this comment you made in eclipse-equinox/p2#381 (comment)

Yes I think so. We will have to hold off until rc1 because it probably breaks m3 disabling the only provider. And we should consider a future where we maybe need a touch point to remove it.

I will do more testing with the installer tomorrow.

[merks]

I see now! So you will include the feature in SimRel so that you can include it in the products for m3 so that we can do earlier testing of the option to disable the other provider.

[jonahgraham]

Yes, thanks Ed for the review.