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Add missing binding methods #13

Job	Run time
build_feature_electrum (linux)	2m 17s
build_all_features (linux)	2m 24s
build_feature_electrum (windows)	4m 26s
build_feature_esplora (linux)	2m 6s
build_all_features (windows)	5m 35s
build_feature_electrum (macos)	2m 33s
build_no_default_features (linux)	1m 53s
build_feature_esplora (windows)	4m 47s
build_all_features (macos)	2m 35s
build_no_default_features (windows)	4m 6s
build_feature_esplora (macos)	1m 55s
build_no_default_features (macos)	1m 58s
	36m 35s

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