[BugFix] Fix Seeking Alpha

[deeleeramone]

1. Why?:

   • This fixes the implementation of Seeking Alpha endpoints.

2. What?:

   • Delete "Upcoming Release Days" because this is actually the earnings calendar.
   • Add Forward EPS and Forward Sales estimates.
   • Support for US and Canadian markets for all 3 functions.
     • Canadian symbols are entered as the country composite ticker, "SHOP:CA".
     • Canadian earnings calendar is selected with the country parameter.

3. Impact:

   • Minimal impact, no changes to any core component.
   • The removed endpoint from discovery is only occupied by this provider and it has always been problematic.

4. Testing Done:

   • Integration and Unit tests.
   • Mix of symbols
   • Check calendar for both US and Canada.
   • CLI