<!--- Verify first that your issue is not already reported on GitHub -->
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##### SUMMARY
<!--- Explain the problem briefly below -->
vmware_guest handles 'version' parameter type error. 
##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
vmware_guest
##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
ansible 2.10.0.dev0
  config file = None
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /root/ansible/lib/ansible
  executable location = /root/ansible/bin/ansible
  python version = 2.7.15+ (default, Oct  7 2019, 17:39:04) [GCC 7.4.0]
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below

```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->


##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->
Using vmware_guest to deploy a new VM with 'version' parameter set to integer 14.
Return error 'int' object has no attribute 'lower'.
This is caused in line 1285:
"if temp_version.lower() == 'latest':"
<!--- Paste example playbooks or commands between quotes below -->
```yaml

```

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##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->


##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

<!--- Paste verbatim command output between quotes -->
```paste below

```

if 'hardware' in self.params:
            if 'num_cpus' in self.params['hardware']:
                try:
                    num_cpus = int(self.params['hardware']['num_cpus'])
                except ValueError:
                    self.module.fail_json(msg="hardware.num_cpus attribute should be an integer value.")
                
                if vm_obj and vm_obj.runtime.powerState == vim.VirtualMachinePowerState.poweredOn:
                    if not vm_obj.config.cpuHotRemoveEnabled and num_cpus < vm_obj.config.hardware.numCPU:
                        self.module.fail_json(msg="Configured cpu number is less than the cpu number of the VM, "
                                                  "cpuHotRemove is not enabled")
                    if not vm_obj.config.cpuHotAddEnabled and num_cpus > vm_obj.config.hardware.numCPU:
                        self.module.fail_json(msg="Configured cpu number is more than the cpu number of the VM, "
                                                  "cpuHotAdd is not enabled")
                if 'num_cpu_cores_per_socket' in self.params['hardware']:
                    try:
                        num_cpu_cores_per_socket = int(self.params['hardware']['num_cpu_cores_per_socket'])
                    except ValueError:
                        self.module.fail_json(msg="hardware.num_cpu_cores_per_socket attribute "
                                                  "should be an integer value.")
                    if num_cpus % num_cpu_cores_per_socket != 0:
                        self.module.fail_json(msg="hardware.num_cpus attribute should be a multiple "
                                                  "of hardware.num_cpu_cores_per_socket")
                    self.configspec.numCoresPerSocket = num_cpu_cores_per_socket
                    if vm_obj is None or self.configspec.numCoresPerSocket != vm_obj.config.hardware.numCoresPerSocket:
                        self.change_detected = True
                self.configspec.numCPUs = num_cpus
                if vm_obj is None or self.configspec.numCPUs != vm_obj.config.hardware.numCPU: