TT#22072 Update packaging

- Bump debhelper compatibility version 10.
- Switch from Priority extra to optional.
- New debian/.gitignore file.

Change-Id: I653ee62b41cedebf291e2ac9a3fc70af0f7e8914

debian/.gitignore

@@ -0,0 +1,7 @@
+*.debhelper
+*.log
+*.substvars
+/.debhelper/
+/debhelper-build-stamp
+/files
+/ngcp-bulk-processor

debian/compat

@@ -1 +1 @@
-9
+10

debian/control

@@ -1,9 +1,9 @@
 Source: ngcp-bulk-processor
 Section: admin
-Priority: extra
+Priority: optional
 Maintainer: Sipwise Development Team <support@sipwise.com>
 Build-Depends:
- debhelper (>= 9~),
+ debhelper (>= 10~),
  libmodule-build-perl | perl (<< 5.21.0~),
 Standards-Version: 3.9.8
 Homepage: https://www.sipwise.com/