Support for telling apart bytes vs base64 text in any columns

[refi64]

# Create a table with 'any'
$ xh localhost:4001/db/request '[0]'='CREATE TABLE anything (a any) STRICT'
HTTP/1.1 200 OK
Content-Length: 34
Content-Type: application/json; charset=utf-8
Date: Fri, 14 Jul 2023 00:20:45 GMT
X-Rqlite-Version: v7.21.4

{
    "results": [
        {
            "last_insert_id": 2
        }
    ]
}
# Insert a blob
$ xh localhost:4001/db/request '[0]'="INSERT INTO anything VALUES (x'c0fe')"
HTTP/1.1 200 OK
Content-Length: 52
Content-Type: application/json; charset=utf-8
Date: Fri, 14 Jul 2023 00:21:14 GMT
X-Rqlite-Version: v7.21.4

{
    "results": [
        {
            "last_insert_id": 1,
            "rows_affected": 1
        }
    ]
}
# Insert some text
$ xh localhost:4001/db/request '[0]'="INSERT INTO anything VALUES ('test')"
HTTP/1.1 200 OK
Content-Length: 52
Content-Type: application/json; charset=utf-8
Date: Fri, 14 Jul 2023 00:22:19 GMT
X-Rqlite-Version: v7.21.4

{
    "results": [
        {
            "last_insert_id": 2,
            "rows_affected": 1
        }
    ]
}
# Get our values back
$ xh localhost:4001/db/request '[0]'='SELECT * FROM anything'
HTTP/1.1 200 OK
Content-Length: 76
Content-Type: application/json; charset=utf-8
Date: Fri, 14 Jul 2023 00:22:56 GMT
X-Rqlite-Version: v7.21.4

{
    "results": [
        {
            "columns": [
                "a"
            ],
            "types": [
                "any"
            ],
            "values": [
                [
                    "wP4="
                ],
                [
                    "test"
                ]
            ]
        }
    ]
}

If I just go based off of the response, there's no way for me to tell if wP4= is supposed to be a string or a blob; the only indicator is that it looks like base64, which could be valid in unintentional cases as well.

[otoolep]

Proposed solution in #1701

[otoolep]

Fixed in #1703