Qore 1.18.0

What's Changed

• refs #4741 implemented options to allow some badly-formatted Swagger … by @davidnich in #4742
• refs #4743 set the default connect timeout for HTTP connectio… by @davidnich in #4744
• refs #4745 implemented an initial EmpathicBuildingDataProvider module by @davidnich in #4746
• refs #4747 fixed date subtraction when the RHS is 1970-01-01Z by @davidnich in #4748
• refs #4749 Fix compilation of QoreEllipsesNode during non-scu build by @niclasr in #4750
• refs #4751 verify connection option values against allowed_values and… by @davidnich in #4752
• refs #4753 fixed a bug where the HttpConnection scheme could not be used by @davidnich in #4754

Full Changelog: release-1.17.0...release-1.18.0