FEAT: (Climate Explorer) Send email for token events

[ccornick]

Currently no web hooks exist. Need to add a web hook for tokenization actions (tokenize, retire, detokenize), along with with an action to send actions to particular emails.

Should probably set this as a configuration value that can be set to "[email protected]".

Email address is pulled from config and that is who gets the email.

[ccornick]

The details that should make it into the email are:

• projectId
• vintage
• Quantity
• Timestamp
  The email for TOKENIZATION should ideally be formatted and should state approximately:
  "[amount] amount of credits were tokenized from project [id] and vintage [year] at [timestamp]. Please make the corresponding change in your registry."

The email for RETIREMENT should ideally be formatted and should state approximately:
"[amount] amount of credits were retired from project [id] and vintage [year] at [timestamp]. Please make the corresponding change in your registry."

The email for DETOKENIZATION should ideally be formatted and should state approximately:
"[amount] amount of credits were detokenized from project [id] and vintage [year] at [timestamp]. Please make the corresponding change in your registry."

[fizpawiz]

Ideally, all of these emails will also include the total amount of that token issued, retired and detokenized to date. This will allow the recipient to verify that the registry reconciles with the tokenization engine.