Add XCG to currencies

What version of Invoice Ninja are you running? ie v4.5 / v5
v5

What environment are you running?
Cloud at invoiceninja

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Huh?

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The Caribbean guilder (code: XCG; abbreviation: Cg; Dutch: Caribische gulden; Papiamento: florin karibense) is a currency of Curaçao and Sint Maarten, two constituent countries of the Kingdom of the Netherlands. It is divided into 100 cents (Papiamento: sèn). Introduced on 31 March 2025, it co-circulates alongside its predecessor, the Netherlands Antillean guilder (ANG), which will cease to be legal tender on 1 July 2025. In November 2020, it was announced that the Caribbean guilder would come...