Add country Ireland (IE)

[lauft]

The following list of holidays need to be verified/completed:

Date	Flags	Name
01-01	[NF]	Lá Caille or Lá Bliana Nua
03-17	[NF]	Lá Fhéile Pádraig
12-25	[NRF]	Lá Nollag
12-26	[NRF]	Lá Fhéile Stiofáin or Lá an Dreoilín
	[NRV]	Luan Cásca
	[NV]	Lá an Lucht Oibre
	[NV]	Lá Saoire i mí Mheitheamh
	[NV]	Lá Saoire i mí Lúnasa
	[NV]	Lá Saoire i mí Dheireadh Fómhair

Checklist:

• What type is the easter date?
  • orthodox
  • western

• All holidays (i.e. days "which are defined by law on which business or work are suspended or reduced") are listed
  • Legal sources which define the holidays are provided
  • The spelling of the holiday names is correct
  • The dates of the holidays are correct