Add missing event data types

[seratch]

While auditing the latest updates on the platform, I found that a few events are not yet supported in this SDK.

Category (place an x in each of the [ ])

• bolt (Bolt for Java)
• bolt-{sub modules} (Bolt for Java - optional modules)
• slack-api-client (Slack API Clients)
• slack-api-model (Slack API Data Models)
• slack-api-*-kotlin-extension (Kotlin Extensions for Slack API Clients)
• slack-app-backend (The primitive layer of Bolt for Java)

Requirements

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 10 lines in your changes missing coverage. Please review.

Project coverage is 74.95%. Comparing base (2bae6fb) to head (ad2d6ec).

Files	Patch %	Lines
.../app_backend/events/handler/AppDeletedHandler.java	0.00%	2 Missing ⚠️
...pp_backend/events/handler/AppInstalledHandler.java	0.00%	2 Missing ⚠️
...kend/events/handler/AppUninstalledTeamHandler.java	0.00%	2 Missing ⚠️
...ackend/events/handler/FunctionExecutedHandler.java	0.00%	2 Missing ⚠️
...s/handler/SharedChannelInviteRequestedHandler.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1332      +/-   ##
============================================
- Coverage     75.02%   74.95%   -0.07%     
+ Complexity     4187     4186       -1     
============================================
  Files           446      451       +5     
  Lines         12920    12930      +10     
  Branches       1331     1331              
============================================
- Hits           9693     9692       -1     
- Misses         2455     2466      +11     
  Partials        772      772              

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[seratch]

These handlers are legacy ones (meaning these are not used in bolt-java), but I've added them this time. In the future, we may want to deprecate them since v2.

[seratch]

FYI for reviewers, all you need to do for Events API are 1) add event classes 2) add payload wrapper classes. Once they are added, you can refer to them in bolt-java without any changes on bolt-java side.

[filmaj]

Good catch!