Update the extension form with all fields necessary for registrar modules.

General Settings

When "Module" is selected, show a select field with the options "Generic" and "Registrar"

Basic Info

Add a checkbox (checked by default) "Statically Define TLDs"
When checked, a text field should be displayed "Supported TLDs"

• This field should have a tooltip - Define the TLDs supported by this module as a comma separated list (e.g. .com,.net,.org)
• This field should have a placeholder - e.g. .com,.net,.org

Module Fields

A package field should be added by default for registrar modules

• name - epp_code
• label - EPP Code
• type - checkbox
• tooltip - Whether to allow users to request an EPP Code through the Blesta service interface

A service field should be added by default for registrar modules

• name - domain
• label - Domain
• type - text

Additional Features

"Optional Functions" should be renamed "Optional Methods"

A new "Registrar Methods" section should be displayed for registrar modules with the following checked by default

• checkAvailability
• checkTransferAvailability
• getDomainInfo
• getExpirationDate
• getServiceDomain
• getTldPricing
• registerDomain
• renewDomain
• transferDomain
  The following fields should be shown, but not checked by default:
• getDomainContacts
• getDomainIsLocked
• getDomainNameServers
• lockDomain
• resendTransferEmail
• restoreDomain
• sendEppEmail
• setDomainContacts
• setDomainNameservers
• setNameserverIps
• unlockDomain
• updateEppCode

Tooltips for each of these checkboxes should be defined base on their doc comments (like we do with the current ones).
All other registrar methods should be considered non-optional and included in the generated module except supportsFeature() and getType() which should not be included