pre-commit: Add mypy

Add mypy so we can run these checks as part of our linting step. Note
that mypy is the last item in the list of checks since flake8 is going
to catch e.g. syntax issues which should be addressed first.

This also allows us to drop use of mypywrap: rather than wrapping mypy,
we can make use of mypy's configuration to specify the files we wish to
run checks on.

Change-Id: Ie51401ead4e31ccd70ab833c59cb397f802ff188
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>

setup.cfg

@@ -101,8 +101,33 @@ follow_imports = skip
 incremental = true
 check_untyped_defs = true
 warn_unused_ignores = true
+files =
+  nova/compute/manager.py,
+  nova/compute/pci_placement_translator.py,
+  nova/crypto.py,
+  nova/filesystem.py,
+  nova/limit/local.py,
+  nova/limit/placement.py,
+  nova/network/neutron.py,
+  nova/pci/*.py,
+  nova/privsep/path.py,
+  nova/scheduler/client/report.py,
+  nova/scheduler/request_filter.py,
+  nova/scheduler/utils.py,
+  nova/virt/driver.py,
+  nova/virt/hardware.py,
+  nova/virt/libvirt/machine_type_utils.py,
+  nova/virt/libvirt/__init__.py,
+  nova/virt/libvirt/cpu/__init__.py,
+  nova/virt/libvirt/cpu/api.py,
+  nova/virt/libvirt/cpu/core.py,
+  nova/virt/libvirt/driver.py,
+  nova/virt/libvirt/event.py,
+  nova/virt/libvirt/guest.py,
+  nova/virt/libvirt/host.py,
+  nova/virt/libvirt/utils.py
 
 [codespell]
 skip = *.po,*.js,*.css,*.html,*.svg,HACKING.py,*hacking*,*build*,*_static*,doc/dictionary.txt,*.pyc,*.inv,*.gz,*.jpg,*.png,*.vsd,*.graffle,*.json
 count =
-quiet-level = 4
+quiet-level = 4