provide holidays for American Samoa Province

Signed-off-by: Sebastian Freundt <hroptatyr@fresse.org>
provide holidays for Guam (US overseas territory)

Signed-off-by: Sebastian Freundt <hroptatyr@fresse.org>
provide holidays for Northern Mariana Islands (US overseas territory)

Signed-off-by: Sebastian Freundt <hroptatyr@fresse.org>
provide holidays for Puerto Rico (US overseas territory)

Signed-off-by: Sebastian Freundt <hroptatyr@fresse.org>
provide holidays for US Virgin Islands (US overseas territory)

Signed-off-by: Sebastian Freundt <hroptatyr@fresse.org>