Need to add validation for ro-MD

[mik7up]

Need to add validation for Moldova republic of mobile phone numbers.
https://github.com/validatorjs/validator.js/edit/master/src/lib/isMobilePhone.js

'ro-MD': /^(\+?373|0)((6(0|1|2|6|7|8|9))|(7(7|8|9)))\d{6}$/

https://www.localeplanet.com/icu/ro-MD/index.html

60 xxxxxx — Orange
61 xxxxxx — Orange
62 xxxxxx — Orange
66 xxxxxx — Unité
67 xxxxxx — Unité
68 xxxxxx — Orange
69 xxxxxx — Orange
78 xxxxxx — Moldcell
79 xxxxxx — Moldcell
77 xxxxxx — IDC

[mik7up]

#1931

[rubiin]

@mik7up PRS are welcome

[MatteoPierro]

@rubiin is ok if I work on this?

[rubiin]

@MatteoPierro Sure

[MatteoPierro]

@rubiin I made the PR #2062
If you decide to accept it, could you please add the label hacktoberfest-accepted? 🙏

[rubiin]

will do