direct: Added support for clusters deployment (#3682)

## Changes
Added support for cluster deployment for direct deployment

As part of the implementation for direct, added the default values 60
for autotermination_minutes, the same value as in TF.

## Why
Behaviour matches the one in Terraform

## Tests
Enabled existing cluster acceptance tests for direct as well + added a
new one which does da different type of updates

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Author: andrewnester

acceptance/bundle/integration_whl/interactive_cluster/out.test.toml

@@ -1,5 +1,3 @@
-EnvMatrix.DATABRICKS_BUNDLE_ENGINE = ["terraform"]  # clusters not implemented
-
 [EnvMatrix]
 DATA_SECURITY_MODE = [
     "USER_ISOLATION",

acceptance/bundle/integration_whl/interactive_cluster/test.toml

@@ -5,6 +5,7 @@
     "max_workers": 7,
     "min_workers": 2
   },
+  "autotermination_minutes": 60,
   "cluster_name": "foo",
   "node_type_id": "[NODE_TYPE_ID]",
   "num_workers": 2,
@@ -20,6 +21,7 @@
     "max_workers": 3,
     "min_workers": 1
   },
+  "autotermination_minutes": 60,
   "cluster_name": "foo-override",
   "node_type_id": "m5.xlarge",
   "num_workers": 3,

acceptance/bundle/integration_whl/interactive_cluster_dynamic_version/out.test.toml

@@ -7,6 +7,7 @@ Warning: expected map, found string
 {
   "clusters": {
     "my_cluster": {
+      "autotermination_minutes": 60,
       "spark_version": "25"
     }
   }