Add "get-zone" command (#613)

* Add GetZoneRecords to DNSProvider interface
* dnscontrol now uses ufave/cli/v2
* NEW: get-zones.md
* HasRecordTypeName should be a method on models.Records not models.DomainConfig
* Implement BIND's GetZoneRecords
* new WriteZoneFile implemented
* go mod vendor
* Update docs to use get-zone instead of convertzone
* Add CanGetZone capability and update all providers.
* Get all zones for a provider at once (#626)
* implement GetZoneRecords for cloudflare
* munge cloudflare ttls
* Implement GetZoneRecords for cloudflare (#625)

Co-authored-by: Craig Peterson <192540+captncraig@users.noreply.github.com>

providers/dnsimple/dnsimpleProvider.go

@@ -25,6 +25,7 @@ var features = providers.DocumentationNotes{
 	providers.DocCreateDomains:       providers.Cannot(),
 	providers.DocDualHost:            providers.Cannot("DNSimple does not allow sufficient control over the apex NS records"),
 	providers.DocOfficiallySupported: providers.Cannot(),
+	providers.CanGetZones:            providers.Unimplemented(),
 }
 
 func init() {
@@ -53,6 +54,14 @@ func (c *DnsimpleApi) GetNameservers(domainName string) ([]*models.Nameserver, e
 	return models.StringsToNameservers(defaultNameServerNames), nil
 }
 
+// GetZoneRecords gets the records of a zone and returns them in RecordConfig format.
+func (client *DnsimpleApi) GetZoneRecords(domain string) (models.Records, error) {
+	return nil, fmt.Errorf("not implemented")
+	// This enables the get-zones subcommand.
+	// Implement this by extracting the code from GetDomainCorrections into
+	// a single function.  For most providers this should be relatively easy.
+}
+
 // GetDomainCorrections returns corrections that update a domain.
 func (c *DnsimpleApi) GetDomainCorrections(dc *models.DomainConfig) ([]*models.Correction, error) {
 	corrections := []*models.Correction{}