more docs skeleton

docs/Tools/Barstools.rst

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+Barstools
+===============================
+Barstools is a collection of useful FIRRTL transformations

docs/Tools/Chisel.rst

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+Chisel
+===========================
+TODO: Chisel intro and pointer to chisel bootcamp

docs/Tools/FIRRTL.rst

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+FIRRTL
+================================
+

docs/Tools/index.rst

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+Tools
+==============================
+The ReBAR framework relays heavily on a set of scala-based tools. While the framework attempts to hide the complexities of these tools, the following pages will introduce them, and how we can use them in order to generate flexible designs
+
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Tools:
+
+   Chisel
+   FIRRTL
+   Barstools
+