[v3] Sync source information from prob-specs

Source information for Practice Exercises will be stored in their `.meta/config.json` file, in the (optional) `source` and/or `source_url` properties.
This commit adds the source information from the corresponding problem-specifications exercise to the `.meta/config.json` file.

The new [configlet](https://github.com/exercism/configlet) version will add support for doing this syncing automatically.

Exercism v3 will automatically include the source information in the README.md file that is sent via the CLI using the source properties in the `.meta/config.json` file.

See [the spec](https://github.com/exercism/docs/blob/main/anatomy/tracks/practice-exercises.md) for more information.

Author: ErikSchierboom

exercises/practice/allergies/.meta/config.json

@@ -4,5 +4,7 @@
     "solution": [],
     "test": [],
     "example": []
-  }
+  },
+  "source": "Jumpstart Lab Warm-up",
+  "source_url": "http://jumpstartlab.com"
 }

exercises/practice/anagram/.meta/config.json

@@ -4,5 +4,7 @@
     "solution": [],
     "test": [],
     "example": []
-  }
+  },
+  "source": "Inspired by the Extreme Startup game",
+  "source_url": "https://github.com/rchatley/extreme_startup"
 }

exercises/practice/atbash-cipher/.meta/config.json

@@ -4,5 +4,7 @@
     "solution": [],
     "test": [],
     "example": []
-  }
+  },
+  "source": "Wikipedia",
+  "source_url": "http://en.wikipedia.org/wiki/Atbash"
 }

exercises/practice/beer-song/.meta/config.json

@@ -4,5 +4,7 @@
     "solution": [],
     "test": [],
     "example": []
-  }
+  },
+  "source": "Learn to Program by Chris Pine",
+  "source_url": "http://pine.fm/LearnToProgram/?Chapter=06"
 }

exercises/practice/bob/.meta/config.json

@@ -4,5 +4,7 @@
     "solution": [],
     "test": [],
     "example": []
-  }
+  },
+  "source": "Inspired by the 'Deaf Grandma' exercise in Chris Pine's Learn to Program tutorial.",
+  "source_url": "http://pine.fm/LearnToProgram/?Chapter=06"
 }

exercises/practice/difference-of-squares/.meta/config.json

@@ -4,5 +4,7 @@
     "solution": [],
     "test": [],
     "example": []
-  }
+  },
+  "source": "Problem 6 at Project Euler",
+  "source_url": "http://projecteuler.net/problem=6"
 }

exercises/practice/etl/.meta/config.json

@@ -4,5 +4,7 @@
     "solution": [],
     "test": [],
     "example": []
-  }
+  },
+  "source": "The Jumpstart Lab team",
+  "source_url": "http://jumpstartlab.com"
 }

exercises/practice/hamming/.meta/config.json

@@ -4,5 +4,7 @@
     "solution": [],
     "test": [],
     "example": []
-  }
+  },
+  "source": "The Calculating Point Mutations problem at Rosalind",
+  "source_url": "http://rosalind.info/problems/hamm/"
 }

exercises/practice/hello-world/.meta/config.json

@@ -4,5 +4,7 @@
     "solution": [],
     "test": [],
     "example": []
-  }
+  },
+  "source": "This is an exercise to introduce users to using Exercism",
+  "source_url": "http://en.wikipedia.org/wiki/%22Hello,_world!%22_program"
 }

exercises/practice/largest-series-product/.meta/config.json

@@ -4,5 +4,7 @@
     "solution": [],
     "test": [],
     "example": []
-  }
+  },
+  "source": "A variation on Problem 8 at Project Euler",
+  "source_url": "http://projecteuler.net/problem=8"
 }