The word "Time" is hardcoded in timepicker.component.html with no option to localize

### Issue type

**Hardcoded text without localization option** (check one with "x")

* [ x] bug report
* [ ] feature request

### Issue description

**Current behavior:**
The word "Time" is hardcoded in file: src/framework/theme/components/timepicker/timepicker.component.html

```

```

**Expected behavior:**
NbTimepickerModule localization options should allow to customize it:

```
NbTimepickerModule.forRoot({
localization: {
hoursText: 'Hora',
minutesText: 'Min',
secondsText: 'Seg',
ampmText: 'Am/Pm',
time: 'Hora',
}
}),
```
**Steps to reproduce:**

```

```


### Other information:
Using Nebular 9.0.3

**npm, node, OS, Browser**
```
No relevant
```

**Angular, Nebular**
```
Using Nebular 9.0.3
Angular: 14.0.2
```