Deprecation of Triton-C and Replacement by decorated Python functions (#86)

This PR implements a major overhaul of the frontend for Triton, and replaces Triton-C by a pure Python API in which kernels are defined as @triton.jit decorated functions. The documentation and tutorials have also been updated to accommodate these changes.

See documentations for more information on the new API

docs/language-reference/python-api/index.rst

@@ -0,0 +1,117 @@
+Python API
+===========
+
+.. currentmodule:: triton
+
+
+Programming Model
+-------------------
+
+.. autosummary::
+    :toctree: generated
+    :nosignatures:
+
+    program_id
+    num_programs
+
+
+Creation Ops
+-------------
+
+.. autosummary::
+    :toctree: generated
+    :nosignatures:
+
+    arange
+    zeros
+
+
+Shape Manipulation Ops
+-----------------------
+
+.. autosummary::
+    :toctree: generated
+    :nosignatures:
+
+    broadcast_to
+    reshape
+    ravel
+
+
+
+Linear Algebra Ops
+-------------------
+
+.. autosummary::
+    :toctree: generated
+    :nosignatures:
+
+    dot
+
+Memory Ops
+--------------------
+
+.. autosummary::
+    :toctree: generated
+    :nosignatures:
+
+    load
+    store
+    atomic_cas
+    atomic_xchg
+
+
+Indexing Ops
+--------------
+
+.. autosummary::
+    :toctree: generated
+    :nosignatures:
+
+    where
+
+
+Math Ops
+----------
+
+.. autosummary::
+    :toctree: generated
+    :nosignatures:
+
+    exp
+    log
+    sigmoid
+    softmax
+
+
+Reduction Ops
+---------------
+
+.. autosummary::
+    :toctree: generated
+    :nosignatures:
+
+    max
+    min
+    sum
+
+
+Comparison ops
+---------------
+
+.. autosummary::
+    :toctree: generated
+    :nosignatures:
+
+    minimum
+    maximum
+
+
+Compiler Hint Ops
+-------------------
+
+.. autosummary::
+    :toctree: generated
+    :nosignatures:
+
+    multiple_of