significantly speeds up file generation.

the goal of this change is to convert rtcd.sh to perl as directly as
possible to allow for simple comparison. future changes can make it more
perl-like.

---
Linux
    [CREATE] vpx_scale_rtcd.h
real    0m0.485s ->    0m0.022s
    [CREATE] vp8_rtcd.h
real    0m4.619s ->    0m0.060s
    [CREATE] vp9_rtcd.h
real    0m10.102s ->    0m0.087s

Windows
    [CREATE] vpx_scale_rtcd.h
real    0m8.360s ->    0m0.080s
    [CREATE] vp8_rtcd.h
real    1m8.083s ->    0m0.160s
    [CREATE] vp9_rtcd.h
real    2m6.489s ->    0m0.233s

Change-Id: Idfb71188206c91237d6a3c3a81dfe00d103f11ee

Though not (currently) required this tests for perl in all
configurations.

Fixes issue #671

Change-Id: Ibe1e72db74bb4cf3252b73c68ff1dfc2ecfc902b

* changes:
  nestegg: packet_track: fix uint64->uint32 warning
  nestegg: fix track_scale double->uint64 warning
  nestegg: fix track_number uint64->uint32 warnings
  nestegg: add ne_get_uint32 convenience function

Change-Id: I4a54b12e5229705222c5a101258b9d1f81e2948d

Change-Id: I9423b543e1be414e5c9e10480b813f06e6b88f8a

This patch adds a new speed feature which doesn't do the rather
expensive entropy context lookup or save to the table,  while
doing costing.

The speed up on desktop36p.y4m is around 10% other clips much less.

On the RTC test set this was + 1% in overall datarate.

Change-Id: Ia5144bbf45270671e7be9c8e4055369909e2f738

This gets more accurate mode hit stats. It's also the first step to
handling ZEROMV not being allowed more intelligently.

Change-Id: I5de6734507b5177bf73e9ddbad923f218c39f3e4

Reset FAST_HEX search_method, which was lost because of code merging.

Change-Id: Ic2b2cb9ec2f1751e96f7db0f9226310f605fcc83

intra_y_mode_mask is already enforced for the sub8x8 case.
intra_uv_mode_mask is already enforced for all sizes.

Change-Id: Ia9dd14701cb49873c2e8f24eb5f8b255eaf76a1f

Clear warning caused by implied conversion from int32 to int64.

Change-Id: I473b37a54984cbfb22702eb3f712465881ff86e8

Change-Id: Ic97ddd5143425a7b63fac4e40d9740a10a0491ad

Change-Id: I5a01d0dccc9afc87e2adbb5ddc7d44379fe1f125

There is one parameter that is never used, therefore is removed.

Change-Id: I595722e7c5731534c72831315359e4dce9c21763

Two paramemters are not in use, therefore are removed.

Change-Id: I41eb601b7b4bf2feedb13b3f240315656d8694f9

Change-Id: Ia319bd924401677b5c30b0f46d1ab2be6a1f446e

Change-Id: Ie83e18802234199491dbb6e90886739814558f96

Change-Id: I111c5bd0dd47db7b1f6952c18056bee548bb42e9

Change-Id: I6d47618e8aee6e6c2fe1cf0b8bb4da0b2a0bab66

There were two parameters not in use, this commit removed them.

Change-Id: Ia03a73b9a2521400bed539df45574e34214ed93a

In addition, a local variable was renamed to avoid confusion.

Change-Id: Id4c497f9cfa219e8a414aa9fee9a85af5f147249