feat: more cloud credential discovery

[ryananicholson]

Adding support for Azure, GCP, and OCI
Also fixed AWS check

Details:
Added file system searches for Azure, GCP, and OCI credentials:

• Azure: #{file_path}/.azure with files named either msal_token_cache.json or accessTokens.json
• GCP: #{file_path}/.config/gcloud with files named either credentials.db or access_tokens.json
• OCI: #{file_path}/.oci/sessions with files named token

Also adjusted the find command for the AWS credential search as it would look outside of expected locations

Testing:
Here is the output of me performing all four searches on my local system (macOS):

• AWS

  Invoke-AtomicTest T1552.001 -TestNames "Find AWS credentials" -InputArgs @{"file_path" = "/Users/nicholsr"}

  PathToAtomicsFolder = /Users/nicholsr/AtomicRedTeam/atomics
  
  Executing test: T1552.001-1 Find AWS credentials                                
  /Users/nicholsr/.aws/credentials                                                
  Exit code: 0                                                                    
  Done executing test: T1552.001-1 Find AWS credentials
  

• Azure

  Invoke-AtomicTest T1552.001 -TestNames "Find Azure credentials" -InputArgs @{"file_path" = "/Users/nicholsr"}

  PathToAtomicsFolder = /Users/nicholsr/AtomicRedTeam/atomics
  
  Executing test: T1552.001-15 Find Azure credentials                             
  /Users/nicholsr/.azure/msal_token_cache.json                                    
  Exit code: 0                                                                    
  Done executing test: T1552.001-15 Find Azure credentials
  

• GCP

  Invoke-AtomicTest T1552.001 -TestNames "Find GCP credentials" -InputArgs @{"file_path" = "/Users/nicholsr"}

  PathToAtomicsFolder = /Users/nicholsr/AtomicRedTeam/atomics
  
  Executing test: T1552.001-16 Find GCP credentials                               
  /Users/nicholsr/.config/gcloud/access_tokens.db                                 
  /Users/nicholsr/.config/gcloud/credentials.db
  Exit code: 0                                                                    
  Done executing test: T1552.001-16 Find GCP credentials
  

• OCI

  Invoke-AtomicTest T1552.001 -TestNames "Find OCI credentials" -InputArgs @{"file_path" = "/Users/nicholsr"}

  PathToAtomicsFolder = /Users/nicholsr/AtomicRedTeam/atomics
  
  Executing test: T1552.001-17 Find OCI credentials                               
  /Users/nicholsr/.oci/sessions/DEFAULT/token                                     
  Exit code: 0
  

Associated Issues:
Previous version of T1552.001-1 exits with code 1 even if credentials are present. This PR fixes the find command to return 0.