Add newRecipe script

[milesfrain]

Fixes #181

[milesfrain]

Example output (customized helper command reference based on recipe type):

Error and Usage:

./scripts/newRecipe.sh
              
Error: No arguments

Usage:
./scripts/newRecipe.sh <new recipe name> <optional recipe to copy>

Examples:
./scripts/newRecipe.sh MyNewRecipe
./scripts/newRecipe.sh MyNewRecipe HelloHalogenHooks
./scripts/newRecipe.sh MyNewRecipe recipes/HelloHalogenHooks/

Node and Web:

./scripts/newRecipe.sh MyNewRecipe1

Creating new recipe MyNewRecipe1 from HelloLog
+ cp -r recipes/HelloLog recipes/MyNewRecipe1
+ grep -rl HelloLog recipes/MyNewRecipe1
+ xargs sed -i s/HelloLog/MyNewRecipe1/g
+ set +x
--- Some helpful development commands for this recipe: ---

* Watch for changes and rebuild and re-run in node.js:
    make MyNewRecipe1-node-watch

* Launch in web browser (will refresh upon rebuild):
    make MyNewRecipe1-web

* Watch for changes and rebuild (only necessary if editing without purs-ide):
    make MyNewRecipe1-build-watch

--------- Common to all recipe types: ---------

* Manual rebuild:
    make MyNewRecipe1-build

* Regenerate recipe table (run this after editing recipes/MyNewRecipe1/README.md):
    make readme

Web Only:

./scripts/newRecipe.sh MyNewRecipe2 HelloHalogenHooks
...
--- Some helpful development commands for this recipe: ---

* Launch in web browser (will refresh upon rebuild):
    make MyNewRecipe2-web

* Watch for changes and rebuild (only necessary if editing without purs-ide):
    make MyNewRecipe2-build-watch

--------- Common to all recipe types: ---------

* Manual rebuild:
    make MyNewRecipe2-build

* Regenerate recipe table (run this after editing recipes/MyNewRecipe2/README.md):
    make readme

Node CLI:

./scripts/newRecipe.sh MyNewRecipe3 recipes/DiceCLI 
--- Some helpful development commands for this recipe: ---
...
* Re-run in node.js:
    make MyNewRecipe3-node

--------- Common to all recipe types: ---------
...

[JordanMartinez]

I'm not sure we want to build the recipe immediately after copying it... If the base includes additional dependencies that one does not want, it might affect the IDE's cache (i.e. what it considers to be included in the project when doing autocomplete and whatnot).
Other than that, this looks really good!