Rel 5 5 2 (#3060)

* Add versionenum, bump maven version

* failing tests

* more logs

* Add more test cases, not passing

* fixed the double chain with contained resource second case

* clean up a bit

* add tests for qualifiers

* force the resource table to be the root of the query if we might be traversing a contained reference

* tidy up

* tests for longer chains

* changelog

* code review feedback

* backport changelog

* Add version.yaml

* [2935] Escape "%" in like expression

* Add backport to changelog

Co-authored-by: Ken Stevens <khstevens@gmail.com>
Co-authored-by: Jason Roberts <jason.roberts@smilecdr.com>
Co-authored-by: katie_smilecdr <katie@smilecdr.com>

hapi-fhir-base/src/main/java/ca/uhn/fhir/util/VersionEnum.java

@@ -76,6 +76,7 @@ public enum VersionEnum {
 	V5_4_2,
 	V5_5_0,
 	V5_5_1,
+	V5_5_2,
 	V5_6_0
 
 	;

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_5_2/version.yaml

@@ -0,0 +1,3 @@
+---
+release-date: "2021-10-07"
+codename: "Quasar"

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_6_0/2935-Search-with-trailing-percent-sign.yaml

@@ -1,5 +1,6 @@
 ---
 type: fix
 issue: 2935
+backport: 5.5.2
 jira: SMILE-3022
 title: "No resource returned when search with percent sign. Problem is now fixed"

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_6_0/2967-hybrid-search-chain.yaml

@@ -1,6 +1,7 @@
 ---
 type: fix
 issue: 2967
+backport: 5.5.2
 jira: SMILE-2899
 title: "Previously, the system would only traverse references to discrete resources while performing a chained search.
 This fix adds support for traversing references to contained resources as well, with the limitation that the reference