Add Conditions linter to verify conditions type, tags and markers

[JoelSpeed]

This PR adds a new linter, that checks for Conditions fields within structs within an API, and makes sure that they match the format expected

// +listType=map
// +listMapKey=type
// +patchStrategy=merge
// +patchMergeKey=type
// +optional
Conditions []metav1.Condition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type" protobuf:"bytes,1,opt,name=conditions"`

It provides configuration to skip the protobuf tags for APIs that do not need it, as well as suggests that the conditions should always be the first in the list. This is also configurable.