Info providers and devices packages

[DmytroLinkin]

With a growing codebase grows resource/ package, which mostly used for keeping the code which doesn't fit into other packages. To cope with that create infoprovider/ and devices/ packages to:

• make plugin more structured;
• allow re-usage of the code by multiple plugins;
• cover code with a new unit-tests.

infoprovider/ package contains info providers, which are moved from resources/ and, to have consistency, extracted from netdevice/ package.

devices/ package contains rdma and vdpa devices moved from netdevice/ package. As an accompanying changes implemented RdmaProvider interface to allow mocking of rdmamap package for unit tests. pciDevice is also moved into devices/, but its responsibility is splitted into:

• apiDevice - implements APIDevice interface to expose device specific information to Kubernetes API;
• hostDevice - implements HostDevice interface to reflect common for all devices functionality; is a base class used across the plugin;
• pciDevice - implements PciDevice interface to reflect common for all PCI devices functionality.

Common functionality extracted from PciDevice is a preparation for future non-PCI based devices, like Auxiliary devices.

[DmytroLinkin]

/CC @adrianchiris

[coveralls]

Pull Request Test Coverage Report for Build 3601818690

• 315 of 354 (88.98%) changed or added relevant lines in 21 files are covered.
• 5 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+3.6%) to 80.0%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
cmd/sriovdp/manager.go	4	5	80.0%
pkg/factory/factory.go	10	11	90.91%
pkg/resources/pool_stub.go	1	2	50.0%
pkg/netdevice/pciNetDevice.go	15	17	88.24%
pkg/devices/gen_net.go	51	57	89.47%
pkg/infoprovider/vhostNetInfoProvider.go	45	51	88.24%
pkg/devices/vdpa.go	16	26	61.54%
pkg/utils/rdma_provider.go	0	12	0.0%
<!--	Total:	315	354

Files with Coverage Reduction	New Missed Lines	%
pkg/accelerator/accelDevice.go	2	84.62%
pkg/netdevice/pciNetDevice.go	3	69.84%
<!--	Total:	5

Totals
Change from base Build 3559238490:	3.6%
Covered Lines:	1684
Relevant Lines:	2105

---

💛 - Coveralls

[DmytroLinkin]

/retest

[DmytroLinkin]

Accidentally closed PR

[DmytroLinkin]

@adrianchiris are we good to merge this PR?

[adrianchiris]

@DmytroLinkin could you rebase this PR.

planning to get to it this week (fingers crossed :) )

[DmytroLinkin]

@DmytroLinkin could you rebase this PR.

planning to get to it this week (fingers crossed :) )

Done

[adrianchiris]

Took a while to get to this one, appreciate the patience @DmytroLinkin ! added some comments. overall i think it looks good.