[🍒][Plugin-1883] SnowFlake Plugin - Fetch schema using Named Table

[sgarg-CS]

[🍒]

🍒 [cherrypick]

Commits :

• 9d8bc2c
• b9af0bd

PR:

• [PLUGIN-1883] SnowFlake Plugin - Fetch schema using Named Table #48 [ Reviewer @itsankit-google ]
• PLUGIN-1896: Add Get Schema button to Named Table option #53 [ Reviewer @itsankit-google ]

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Description

This PR contains the changes to address the following issues:

SnowFlake Plugin - Fetch schema using Named Table

JIRA : Plugin-1883

• Adds Import Query Type radio button plugin property with the following options to choose from
  • Native Query
  • Named Table
• Adds Table Name property in Snowflake Source plugin properties
• Modifies schema retrieval using table name and importQuery

SnowFlake Plugin - Add Get Schema Button to Named Table option

JIRA : Plugin-1896

• Adds the Get Schema button to Named Table radio button in Import Query Type