Add React Native snippets

snippets/react-native/fiat_currencies.ts

@@ -0,0 +1,22 @@
+import {
+    listFiatCurrencies,
+    fetchFiatRates
+} from "@breeztech/react-native-breez-sdk"
+
+const exampleListCurrencies = async () => {
+    // ANCHOR: list-fiat-currencies
+    const fiatCurrencies = await listFiatCurrencies()
+    // ANCHOR_END: list-fiat-currencies
+}
+
+const exampleFetchRates = async () => {
+    // ANCHOR: fetch-fiat-rates
+    const fiatRates = await fetchFiatRates()
+    // ANCHOR_END: fetch-fiat-rates
+}
+
+const exampleListCurrenciesAndRates = async () => {
+    // ANCHOR: get-fiat-currencies-and-rates
+    // TODO
+    // ANCHOR_END: get-fiat-currencies-and-rates
+}