refactor: split cluster create logic into smaller parts

* Create the following packages under `/create`:
	- `flags` containing the pflag.Value implementations
	- `clusterops` containing the options for cluster creation
		- `configmaker` containing the logic that aids in creation of talos and provision configuration for cluster creation
			- internal `makers` and `siderolinkbuilder` packages that hide the internal logic that configmaker uses
* Remove code duplication of default values. Now all default values come from the clusterops Get functions.
* Add unit tests for flag implementations.
* Add tests that compare machine configs generated for cluster create to default configs.
	These tests also functions as snapshot tests and will asure no undesired changes pass through in the future unnoticed.

Signed-off-by: Orzelius <33936483+Orzelius@users.noreply.github.com>

Author: Orzelius

cmd/talosctl/cmd/mgmt/cluster/create/clusterops/configmaker/config_maker.go

@@ -0,0 +1,36 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+package configmaker
+
+import (
+	"github.com/siderolabs/talos/cmd/talosctl/cmd/mgmt/cluster/create/clusterops"
+	"github.com/siderolabs/talos/cmd/talosctl/cmd/mgmt/cluster/create/clusterops/configmaker/internal/makers"
+)
+
+// DockerOptions are the options for provisioning a docker based Talos cluster.
+type DockerOptions makers.MakerOptions[clusterops.Docker]
+
+// GetDockerConfigs returns the cluster configs for docker.
+func GetDockerConfigs(options DockerOptions) (clusterops.ClusterConfigs, error) {
+	maker, err := makers.NewDocker(options)
+	if err != nil {
+		return clusterops.ClusterConfigs{}, err
+	}
+
+	return maker.GetClusterConfigs()
+}
+
+// QemuOptions are the options for provisioning a qemu based Talos cluster.
+type QemuOptions makers.MakerOptions[clusterops.Qemu]
+
+// GetQemuConfigs returns the cluster configs for qemu.
+func GetQemuConfigs(options QemuOptions) (clusterops.ClusterConfigs, error) {
+	maker, err := makers.NewQemu(options)
+	if err != nil {
+		return clusterops.ClusterConfigs{}, err
+	}
+
+	return maker.GetClusterConfigs()
+}