Moves NIP-55 calls to be suspending functions.

Moves NIP-55 calls to include an ID per call, not per event.
Adds error handling facilities to the Signer functions.
Moves the indexing of the decrypted objects to outside the LocalCache
Migrates Signers to become suspending functions.
Migrates Decryption caching systems to outside the Events themselves.
Migrates all NIP-51 lists to the new structure.
Migrates Drafts and NIP-04 and NIP-17 DMs to the new structure
Migrates Bookmarks to the new structure.
Changes the Room route to avoid using hashcode.

commons/src/androidTest/java/com/vitorpamplona/amethyst/commons/preview/BlurhashTest.kt

@@ -96,7 +96,7 @@ class BlurhashTest {
     @Test
     fun testLorikeet() {
         val blurhash = load("/lorikeet.jpg").toBlurhash()
-        assertEquals("rFDcT@_LNs#p%Mt*nNM}E2VrIVX6VuV@WUo{xtjv9]RRw[OXS}rrWFX9w{OZxaxWNHX4n\$M}NGaK%0RkM}w{xto|jFs,Sh-Tj]bcwJnjXSxZs.NI", blurhash)
+        assertEquals("rFDcT@_LNs#:-pyBnhRRE2Z~MyX5VuV@WUo{xta\$9]RQw[OXS}rrWFXSw|OsxaxWNHSwn~M}NGaK%0RkM}w{xto|jGs+Sh-Tj]W?wJnjXSxGs.NI", blurhash)
     }
 
     private fun load(filename: String): Bitmap =