Introducing defaulting logic (#324)

* Generating crds/apis. 
* Updating plugins, types, default logic, main controller loop, licenses. 
* Updating logic to default the main agent, cluster agent, cluster check runners, default features. 
* Add tests, logic to patch features. repackage default vars.

LICENSE-3rdparty.csv

@@ -21,8 +21,6 @@ core,"github.com/beorn7/perks/quantile",MIT
 core,"github.com/cenkalti/backoff",MIT
 core,"github.com/cespare/xxhash/v2",MIT
 core,"github.com/davecgh/go-spew/spew",ISC
-core,"github.com/docker/spdystream",Apache-2.0
-core,"github.com/docker/spdystream/spdy",Apache-2.0
 core,"github.com/dsnet/compress",FreeBSD
 core,"github.com/dsnet/compress/bzip2",FreeBSD
 core,"github.com/dsnet/compress/bzip2/internal/sais",FreeBSD
@@ -95,6 +93,8 @@ core,"github.com/mailru/easyjson/jwriter",MIT
 core,"github.com/mattn/go-runewidth",MIT
 core,"github.com/matttproud/golang_protobuf_extensions/pbutil",Apache-2.0
 core,"github.com/mholt/archiver/v3",MIT
+core,"github.com/moby/spdystream",Apache-2.0
+core,"github.com/moby/spdystream/spdy",Apache-2.0
 core,"github.com/modern-go/concurrent",Apache-2.0
 core,"github.com/modern-go/reflect2",Apache-2.0
 core,"github.com/nwaples/rardecode",FreeBSD

api/v1alpha1/const.go

@@ -201,9 +201,6 @@ const (
 	ClusterAgentCustomConfigVolumePath    = "/etc/datadog-agent/datadog-cluster.yaml"
 	ClusterAgentCustomConfigVolumeSubPath = "datadog-cluster.yaml"
 
-	DefaultSystemProbeSecCompRootPath = "/var/lib/kubelet/seccomp"
-	DefaultAppArmorProfileName        = "unconfined"
-	DefaultSeccompProfileName         = "localhost/system-probe"
 	SysteProbeAppArmorAnnotationKey   = "container.apparmor.security.beta.kubernetes.io/system-probe"
 	SysteProbeSeccompAnnotationKey    = "container.seccomp.security.alpha.kubernetes.io/system-probe"
 	SystemProbeOSReleaseDirVolumeName = "host-osrelease"
@@ -225,29 +222,6 @@ const (
 	KubeEndpointsListener             = "kube_endpoints"
 	KubeServicesAndEndpointsListeners = "kube_services kube_endpoints"
 
-	// Liveness probe default config
-
-	DefaultLivenessProbeInitialDelaySeconds int32 = 15
-	DefaultLivenessProbePeriodSeconds       int32 = 15
-	DefaultLivenessProbeTimeoutSeconds      int32 = 5
-	DefaultLivenessProbeSuccessThreshold    int32 = 1
-	DefaultLivenessProbeFailureThreshold    int32 = 6
-	DefaultAgentHealthPort                  int32 = 5555
-	DefaultLivenessProbeHTTPPath                  = "/live"
-
-	// Readiness probe default config
-
-	DefaultReadinessProbeInitialDelaySeconds int32 = 15
-	DefaultReadinessProbePeriodSeconds       int32 = 15
-	DefaultReadinessProbeTimeoutSeconds      int32 = 5
-	DefaultReadinessProbeSuccessThreshold    int32 = 1
-	DefaultReadinessProbeFailureThreshold    int32 = 6
-	DefaultReadinessProbeHTTPPath                  = "/ready"
-
-	// APM default values
-
-	DefaultAPMAgentTCPPort int32 = 8126
-
 	// Consts used to setup Rbac config
 	// API Groups