Get Last Month Name & Get Month Name By Number

Retrieve the name of previous month based on the date object
```javascript
d.getLastMonthName(); // fill last month name, January, February, etc
```

Retrieve the name/abbreviation of a month based on the provided number
```javascript
Date.getMonthNameFromNumber(); // 0 -  January, 1 - February, etc
Date.getMonthAbbrFromNumber(); // 0 - Jan, 1 - Feb, etc
```