<!--- 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

```

self.wait_for_task(task)
                            if task.info.state == 'error':
                                return {'changed': self.change_applied, 'failed': True, 'msg': task.info.error.msg, 'op': 'upgrade'}
                        except vim.fault.AlreadyUpgraded:
                            
                            pass
            if 'virt_based_security' in self.params['hardware']:
                host_version = self.select_host().summary.config.product.version
                if int(host_version.split('.')[0]) < 6 or (int(host_version.split('.')[0]) == 6 and int(host_version.split('.')[1]) < 7):
                    self.module.fail_json(msg="ESXi version %s not support VBS." % host_version)
                guest_ids = ['windows9_64Guest', 'windows9Server64Guest']
                if vm_obj is None:
                    guestid = self.configspec.guestId
                else:
                    guestid = vm_obj.summary.config.guestId
                if guestid not in guest_ids:
                    self.module.fail_json(msg="Guest '%s' not support VBS." % guestid)
                if (vm_obj is None and int(self.configspec.version.split('-')[1]) >= 14) or \
                        (vm_obj and int(vm_obj.config.version.split('-')[1]) >= 14 and (vm_obj.runtime.powerState == vim.VirtualMachinePowerState.poweredOff)):
                    self.configspec.flags = vim.vm.FlagInfo()
                    self.configspec.flags.vbsEnabled = bool(self.params['hardware']['virt_based_security'])
                    if bool(self.params['hardware']['virt_based_security']):
                        self.configspec.flags.vvtdEnabled = True
                        self.configspec.nestedHVEnabled = True
                        if (vm_obj is None and self.configspec.firmware == 'efi') or \
                                (vm_obj and vm_obj.config.firmware == 'efi'):
                            self.configspec.bootOptions = vim.vm.BootOptions()
                            self.configspec.bootOptions.efiSecureBootEnabled = True
                        else:
                            self.module.fail_json(msg="Not support VBS when firmware is BIOS.")