Shadify (Independent Publisher) (#1856)

* Revert "Merge branch 'microsoft:dev' into dev"

This reverts commit 096a7c3199, reversing
changes made to cb0948670f.

* Revert "Merge branch 'microsoft:dev' into dev"

This reverts commit cb0948670f, reversing
changes made to dc26e8a026.

* Revert "Revert "Merge branch 'microsoft:dev' into dev""

This reverts commit 01764d0a6d.

* Revert "Revert "Merge branch 'microsoft:dev' into dev""

This reverts commit a3f086ef0f.

* Add files via upload

* Revert "Add files via upload"

This reverts commit eeff7b7a02.

* Add files via upload

* Delete independent-publisher-connectors/FileIO directory

* Add files via upload

independent-publisher-connectors/Shadify/apiProperties.json

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+{
+  "properties": {
+    "connectionParameters": {},
+    "iconBrandColor": "#da3b01",
+    "capabilities": [],
+    "publisher": "Troy Taylor",
+    "stackOwner": "Yury Swiderko"
+  }
+}

independent-publisher-connectors/Shadify/readme.md

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+# Shadify
+Shadify is a powerful service for generating data and executing various logic to create different applications and games. Endpoints include data generated for Suduku, Takuzu, Schulte, Minesweeper, word search, anagrams, and math expressions.
+
+## Publisher: Troy Taylor, Hitachi Solutions
+
+## Prerequisites
+There are no prerequisites to use this service.
+
+## Obtaining Credentials
+There are no credentials needed to use this service.
+
+## Supported Operations
+### Check Sudoku answers
+Uses answer lines in a string format (separated by a dash) to retrieve errors and error position.
+### Get a Sudoku puzzle
+Returns an array of the task and completed grid lines.
+### Get a Takuzu puzzle
+Retrieves a puzzle based on the requested size and field fill.
+### Check Takuzu answers
+Uses answer lines in a string format (separated by a dash) to retrieve errors and error position.
+### Get a Schulte table
+Retrieves a random Schulte table with the given size and mode.
+### Get a Minesweeper puzzle
+Retrieve a random Minesweeper puzzle from the given width and height, number of mines, and start position.
+### Get a word search puzzle
+Retrieve a random word search puzzle.
+### Get an anagram
+Retrieves a word and an array of all possible words composed from that word.
+### Get an addition expression
+Retrieves a random addition expression.
+### Get a subtraction expression
+Retrieves a random subtraction expression.
+### Get a multiplication expression
+Retrieves a random multiplication expression.
+### Get a division expression
+Retrieves a random division expression.
+### Get a quadratic equation
+Retrieve a random quadratic equation.
+
+## Known Issues and Limitations
+There are no known issues at this time.