c: move c files into nostrdb in prep for switchover

nostrdb/bech32_util.h

@@ -0,0 +1,28 @@
+#ifndef LIGHTNING_COMMON_BECH32_UTIL_H
+#define LIGHTNING_COMMON_BECH32_UTIL_H
+#include "config.h"
+
+#include "tal.h"
+#include "hash_u5.h"
+
+/**
+ * Push the bytes in src in 5 bit format onto the end of data.
+ */
+void bech32_push_bits(u5 **data, const void *src, size_t nbits);
+
+/**
+ * Push the bytes in src in 8 bit format onto the end of data.
+ */
+void bech32_pull_bits(u8 **data, const u5 *src, size_t nbits);
+
+/**
+ * Checksumless bech32 routines.
+ */
+bool from_bech32_charset(const tal_t *ctx,
+             const char *bech32, size_t bech32_len,
+             char **hrp, u8 **data);
+
+char *to_bech32_charset(const tal_t *ctx,
+            const char *hrp, const u8 *data);
+
+#endif /* LIGHTNING_COMMON_BECH32_UTIL_H */