add keepass csv export; improve hotp

- export to dedicated totp and hotp csv files for KeePass
- show Typ as totp/hotp instead of OTP_TOTP/OTP_HOTP
  (BREAKING CHANGE in csv, json and stdout, qr codes or urls are not affected)
- add hotp example
- add hotp tests
- export counter for hotp to csv and json files
- add section on KeePass to README
- increase protobuf to 4.21.10
- show file names of exported csv or json files

Pipfile.lock

@@ -85,23 +85,23 @@
         },
         "protobuf": {
             "hashes": [
-                "sha256:2c9c2ed7466ad565f18668aa4731c535511c5d9a40c6da39524bccf43e441719",
-                "sha256:48e2cd6b88c6ed3d5877a3ea40df79d08374088e89bedc32557348848dff250b",
-                "sha256:5b0834e61fb38f34ba8840d7dcb2e5a2f03de0c714e0293b3963b79db26de8ce",
-                "sha256:61f21493d96d2a77f9ca84fefa105872550ab5ef71d21c458eb80edcf4885a99",
-                "sha256:6e0be9f09bf9b6cf497b27425487706fa48c6d1632ddd94dab1a5fe11a422392",
-                "sha256:6e312e280fbe3c74ea9e080d9e6080b636798b5e3939242298b591064470b06b",
-                "sha256:7eb8f2cc41a34e9c956c256e3ac766cf4e1a4c9c925dc757a41a01be3e852965",
-                "sha256:84ea107016244dfc1eecae7684f7ce13c788b9a644cd3fca5b77871366556444",
-                "sha256:9227c14010acd9ae7702d6467b4625b6fe853175a6b150e539b21d2b2f2b409c",
-                "sha256:a419cc95fca8694804709b8c4f2326266d29659b126a93befe210f5bbc772536",
-                "sha256:a7d0ea43949d45b836234f4ebb5ba0b22e7432d065394b532cdca8f98415e3cf",
-                "sha256:b5ab0b8918c136345ff045d4b3d5f719b505b7c8af45092d7f45e304f55e50a1",
-                "sha256:e575c57dc8b5b2b2caa436c16d44ef6981f2235eb7179bfc847557886376d740",
-                "sha256:f9eae277dd240ae19bb06ff4e2346e771252b0e619421965504bd1b1bba7c5fa"
+                "sha256:0413addc126c40a5440ee59be098de1007183d68e9f5f20ed5fbc44848f417ca",
+                "sha256:05cbcb9a25cd781fd949f93f6f98a911883868c0360c6d2264fc99a903c8f0d7",
+                "sha256:0c968753028cb14b1d24cc839723f7e9505b305fc588a37a9e0f7d270cb59d89",
+                "sha256:2a172741b5b041a896b621cef4277077afd571e0d3a6e524e7171f1c70e33200",
+                "sha256:3f08f04b4f101dd469efbcc1731fbf48068eccd8a42f4e2ea530aa012a5f56f8",
+                "sha256:4d97c16c0d11155b3714a29245461f0eb60cace294455077f3a3b8a629afa383",
+                "sha256:5096b3922b45e4b7a04d3d3cb855d13bb5ccd4d5e44b129e706232ebf0ffb870",
+                "sha256:5efa8a8162ada7e10847140308fbf84fdc5b89dc21655d12ec04aed87284fe07",
+                "sha256:6b809f20923b6ef49dc1755cb50bdb21be179b4a3c7ffcab1fe5d3f139b58a51",
+                "sha256:81b233a06c62387ea5c9be2cd9aedd2ba09940e91da53b920e9ff5bd98e48e7f",
+                "sha256:a5e89eabaa0ca72ce1b7c8104a740d44cdb67942cbbed00c69a4c0541de17107",
+                "sha256:b78d7c2c36b51c0041b9bf000be4adb09f4112bfc40bc7a9d48ac0b0dfad139e",
+                "sha256:e53165dd14d19abc7f50733f365de431e51d1d262db40c0ee22e271a074fac59",
+                "sha256:e92768d17473657c87e98b79a4c7724b0ddfa23211b05ce137bfdc55e734e36f"
             ],
             "index": "pypi",
-            "version": "==4.21.9"
+            "version": "==4.21.10"
         },
         "qrcode": {
             "hashes": [
@@ -234,11 +234,11 @@
         },
         "pylint": {
             "hashes": [
-                "sha256:15060cc22ed6830a4049cf40bc24977744df2e554d38da1b2657591de5bcd052",
-                "sha256:25b13ddcf5af7d112cf96935e21806c1da60e676f952efb650130f2a4483421c"
+                "sha256:1d561d1d3e8be9dd880edc685162fbdaa0409c88b9b7400873c0cf345602e326",
+                "sha256:91e4776dbcb4b4d921a3e4b6fec669551107ba11f29d9199154a01622e460a57"
             ],
             "index": "pypi",
-            "version": "==2.15.6"
+            "version": "==2.15.7"
         },
         "pyparsing": {
             "hashes": [