[CAD-1838] Add whitelisting (listing) to return delisted.

[ksaric]

https://jira.iohk.io/browse/CAD-1838

Tested on shelley-qa node.

Testing instructions follow.

We have a valid offline metadata:

$> curl --verbose --header "Content-Type: application/json" http://localhost:3100/api/v1/metadata/fc80a2a814338475c737df5d1c50253046c8c04eb3663336af7beb38/93cf2f2fead6c419ccaae1a41f0786de4b9daefea7074d7bda3d288e76e20a97

*   Trying 127.0.0.1:3100...
* TCP_NODELAY set
* Connected to localhost (127.0.0.1) port 3100 (#0)
> GET /api/v1/metadata/fc80a2a814338475c737df5d1c50253046c8c04eb3663336af7beb38/93cf2f2fead6c419ccaae1a41f0786de4b9daefea7074d7bda3d288e76e20a97 HTTP/1.1
> Host: localhost:3100
> User-Agent: curl/7.68.0
> Accept: */*
> Content-Type: application/json
> 
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Transfer-Encoding: chunked
< Date: Thu, 01 Oct 2020 12:10:42 GMT
< Server: Warp/3.3.5
< Content-Type: application/json;charset=utf-8
< Cache: always
< 
* Connection #0 to host localhost left intact
{"name": "IOG 3", "description": "IOG Testnet Pool (Private)", "ticker": "IOG3", "homepage": "https://iohk.io"}

We delist a specific pool:

$> curl --user ksaric:cirask --verbose --header "Content-Type: application/json" --request PATCH --data '{"poolId":"fc80a2a814338475c737df5d1c50253046c8c04eb3663336af7beb38"}' http://localhost:3100/api/v1/delist

*   Trying 127.0.0.1:3100...
* TCP_NODELAY set
* Connected to localhost (127.0.0.1) port 3100 (#0)
* Server auth using Basic with user 'ksaric'
> PATCH /api/v1/delist HTTP/1.1
> Host: localhost:3100
> Authorization: Basic a3NhcmljOmNpcmFzaw==
> User-Agent: curl/7.68.0
> Accept: */*
> Content-Type: application/json
> Content-Length: 69
> 
* upload completely sent off: 69 out of 69 bytes
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Transfer-Encoding: chunked
< Date: Thu, 01 Oct 2020 12:10:42 GMT
< Server: Warp/3.3.5
< Content-Type: application/json;charset=utf-8
< 
* Connection #0 to host localhost left intact
{"poolId":"fc80a2a814338475c737df5d1c50253046c8c04eb3663336af7beb38"}

We try to fetch the metadata, but since the pool id was delisted, we can't get that info (403):

$> curl --verbose --header "Content-Type: application/json" http://localhost:3100/api/v1/metadata/fc80a2a814338475c737df5d1c50253046c8c04eb3663336af7beb38/93cf2f2fead6c419ccaae1a41f0786de4b9daefea7074d7bda3d288e76e20a97

*   Trying 127.0.0.1:3100...
* TCP_NODELAY set
* Connected to localhost (127.0.0.1) port 3100 (#0)
> GET /api/v1/metadata/fc80a2a814338475c737df5d1c50253046c8c04eb3663336af7beb38/93cf2f2fead6c419ccaae1a41f0786de4b9daefea7074d7bda3d288e76e20a97 HTTP/1.1
> Host: localhost:3100
> User-Agent: curl/7.68.0
> Accept: */*
> Content-Type: application/json
> 
* Mark bundle as not supporting multiuse
< HTTP/1.1 403 Forbidden
< Transfer-Encoding: chunked
< Date: Thu, 01 Oct 2020 12:10:42 GMT
< Server: Warp/3.3.5
< 
* Connection #0 to host localhost left intact

We then enlist the pool id:

$> curl --user ksaric:cirask --verbose --header "Content-Type: application/json" --request PATCH --data '{"poolId":"fc80a2a814338475c737df5d1c50253046c8c04eb3663336af7beb38"}' http://localhost:3100/api/v1/enlist

*   Trying 127.0.0.1:3100...
* TCP_NODELAY set
* Connected to localhost (127.0.0.1) port 3100 (#0)
* Server auth using Basic with user 'ksaric'
> PATCH /api/v1/enlist HTTP/1.1
> Host: localhost:3100
> Authorization: Basic a3NhcmljOmNpcmFzaw==
> User-Agent: curl/7.68.0
> Accept: */*
> Content-Type: application/json
> Content-Length: 69
> 
* upload completely sent off: 69 out of 69 bytes
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Transfer-Encoding: chunked
< Date: Thu, 01 Oct 2020 12:10:42 GMT
< Server: Warp/3.3.5
< Content-Type: application/json;charset=utf-8
< 
* Connection #0 to host localhost left intact
{"poolId":"fc80a2a814338475c737df5d1c50253046c8c04eb3663336af7beb38"}

And then the metadata is available again:

$> curl --verbose --header "Content-Type: application/json" http://localhost:3100/api/v1/metadata/fc80a2a814338475c737df5d1c50253046c8c04eb3663336af7beb38/93cf2f2fead6c419ccaae1a41f0786de4b9daefea7074d7bda3d288e76e20a97

*   Trying 127.0.0.1:3100...
* TCP_NODELAY set
* Connected to localhost (127.0.0.1) port 3100 (#0)
> GET /api/v1/metadata/fc80a2a814338475c737df5d1c50253046c8c04eb3663336af7beb38/93cf2f2fead6c419ccaae1a41f0786de4b9daefea7074d7bda3d288e76e20a97 HTTP/1.1
> Host: localhost:3100
> User-Agent: curl/7.68.0
> Accept: */*
> Content-Type: application/json
> 
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Transfer-Encoding: chunked
< Date: Thu, 01 Oct 2020 12:10:42 GMT
< Server: Warp/3.3.5
< Content-Type: application/json;charset=utf-8
< Cache: always
< 
* Connection #0 to host localhost left intact
{"name": "IOG 3", "description": "IOG Testnet Pool (Private)", "ticker": "IOG3", "homepage": "https://iohk.io"}%