v1.3.4 Improve Archive Command and update UnityFileSystemAPI

[SkowronskiAndrew]

Example of new info command with an AssetBundle:

$ UnityDataTool archive info .\scenes
Unity Version                  2019.4.0f1
File Size                      70,290 bytes
Data Size                      70,123 bytes
Uncompressed Data Size         307,872 bytes
Compression Ratio              4.39x
Compression                    Lzma
Block Count                    1
File Count                     4
Serialized File Count          4

Example output from a small compressed player build

=== data.unity3d ===
--- header ---
Signature                      UnityFS
Version                        8
Unity Version                  6000.2.0a7
File Size                      3,033,272 bytes
Compressed Metadata Size       488
Uncompressed Metadata Size     934
Metadata Compression           Lz4HC
Flags                          BlocksAndDirectoryInfoCombined, BlockInfoNeedPaddingAtStart

--- blocks ---
Blocks: 67
  #0    Offset: 560  Uncompressed: 131,072  Compressed: 65,983  Compression: Lz4HC
  #1    Offset: 66,543  Uncompressed: 131,072  Compressed: 38,895  Compression: Lz4HC
  #2    Offset: 105,438  Uncompressed: 131,072  Compressed: 27,302  Compression: Lz4HC
  #3    Offset: 132,740  Uncompressed: 131,072  Compressed: 35,741  Compression: Lz4HC
  #4    Offset: 168,481  Uncompressed: 131,072  Compressed: 28,373  Compression: Lz4HC

<snip similar lines> 

  #64   Offset: 2,975,373  Uncompressed: 131,072  Compressed: 17,748  Compression: Lz4HC
  #65   Offset: 2,993,121  Uncompressed: 131,072  Compressed: 35,650  Compression: Lz4HC
  #66   Offset: 3,028,771  Uncompressed: 8,660  Compressed: 4,501  Compression: Lz4HC

--- list ---
globalgamemanagers
  Offset: 0
  Size: 115316
  Flags: SerializedFile

Resources/unity_builtin_extra
  Offset: 115316
  Size: 339424
  Flags: SerializedFile

globalgamemanagers.assets
  Offset: 454740
  Size: 7665720
  Flags: SerializedFile

sharedassets0.assets
  Offset: 8120460
  Size: 532924
  Flags: SerializedFile

level0
  Offset: 8653384
  Size: 2960
  Flags: SerializedFile

resources.assets
  Offset: 8656344
  Size: 3068
  Flags: SerializedFile

And JSON versions also available for header, list and blocks

{
  "signature": "UnityFS",
  "version": 8,
  "unityVersion": "6000.2.0a7",
  "fileSize": 3033272,
  "compressedMetadataSize": 488,
  "uncompressedMetadataSize": 934,
  "metadataCompression": "Lz4HC",
  "flags": [
    "BlocksAndDirectoryInfoCombined",
    "BlockInfoNeedPaddingAtStart"
  ]
}


{
  "blocks": [
    {
      "index": 0,
      "offset": 560,
      "uncompressedSize": 131072,
      "compressedSize": 65983,
      "compression": "Lz4HC",
      "isStreamed": false
    },
...
<snip>


[
  {
    "path": "globalgamemanagers",
    "offset": 0,
    "size": 115316,
    "flags": "SerializedFile"
  },
  {
    "path": "Resources/unity_builtin_extra",
    "offset": 115316,
    "size": 339424,
    "flags": "SerializedFile"
  },
<snip>