Modify rule S100: add language JCL (#3723)

* Add jcl to rule S100

* Provide JCL details

* Address review comment

---------

Co-authored-by: rudy-regazzoni-sonarsource <rudy-regazzoni-sonarsource@users.noreply.github.com>
Co-authored-by: Rudy Regazzoni <110470341+rudy-regazzoni-sonarsource@users.noreply.github.com>

rules/S100/jcl/metadata.json

@@ -0,0 +1,3 @@
+{
+  "title": "Procedure names should comply with a naming convention"
+}

rules/S100/jcl/rule.adoc

@@ -0,0 +1,36 @@
+== Why is this an issue?
+
+Shared naming conventions allow teams to collaborate efficiently.
+
+This rule raises an issue when a procedure name does not match a provided regular expression.
+
+For example, with the default provided regular expression ``++^[A-Z][A-Z0-9]*$++``, the procedure:
+
+[source,jcl]
+----
+//* Noncompliant
+//$PROC1 PROC
+----
+
+should be renamed to
+
+[source,jcl]
+----
+//PROC1 PROC
+----
+
+ifdef::env-github,rspecator-view[]
+
+'''
+== Implementation Specification
+(visible only on this page)
+
+include::../message.adoc[]
+
+'''
+== Comments And Links
+(visible only on this page)
+
+include::../comments-and-links.adoc[]
+
+endif::env-github,rspecator-view[]

rules/S100/message.adoc

@@ -1,4 +1,4 @@
 === Message
 
-Rename [method|function|subroutine] "XXXX" to match the regular expression ${format}.
+Rename [method|function|subroutine|procedure] "XXXX" to match the regular expression ${format}.