ZODB: import patch "incpozo"

Patch submitted here:
https://github.com/zopefoundation/ZODB/pull/403

We backport it in SlapOS directly as the branch 5.8 is not being
developed anymore.

component/ZODB/buildout.cfg

@@ -60,14 +60,22 @@ egg-versions =
 [ZODB5]
 <= _ZODB
 egg-versions =
-  ZODB = 5.8.1
+  ZODB = 5.8.1+SlapOSPatched001
   transaction = 4.0.0
+patch-binary = ${patch:location}/bin/patch
+ZODB-patches =
+  ${:_profile_base_location_}/incpozo-5.8.0.patch#99a9e7889b06ab3fdb1adbd2b152afba
+ZODB-patch-options = -p1
 
 [ZODB5:python2]
 <= _ZODB
 egg-versions =
   ZODB = 5.8.1
   transaction = 3.0.1
+patch-binary = ${patch:location}/bin/patch
+ZODB-patches =
+  ${:_profile_base_location_}/incpozo-5.8.0.patch#99a9e7889b06ab3fdb1adbd2b152afba
+ZODB-patch-options = -p1
 
 [ZODB6]
 <= _ZODB