Add com.jcraft.jzlib 1.1.1

com.jcraft.jsch requires com.jcraft.jzlib to provide optional zlib
packet compression support. Add this library so that jgit can handle
packet compression.

CQ: 15292
Bug: 529129
Change-Id: I0297bd0488753547a5f5d47dbf0db508a79dd265
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

pom.xml

diff --git a/pom.xml b/pom.xml
index 9550993..6f4ff37 100644
--- a/pom.xml
+++ b/pom.xml
@@ -193,6 +193,7 @@
 
     <jgit-last-release-version>4.9.2.201712150930-r</jgit-last-release-version>
     <jsch-version>0.1.54</jsch-version>
+    <jzlib-version>1.1.1</jzlib-version>
     <javaewah-version>1.1.6</javaewah-version>
     <junit-version>4.12</junit-version>
     <test-fork-count>1C</test-fork-count>
@@ -624,6 +625,12 @@
       </dependency>
 
       <dependency>
+        <groupId>com.jcraft</groupId>
+        <artifactId>jzlib</artifactId>
+        <version>${jzlib-version}</version>
+      </dependency>
+
+      <dependency>
         <groupId>com.googlecode.javaewah</groupId>
         <artifactId>JavaEWAH</artifactId>
         <version>${javaewah-version}</version>