Add GeoTIFF support in decode_tiff (#880)

This PR essentially replaces PR 578. GeoTIFF is a superset of
TIFF that contains geographic information.

I still haven't figured out exactly the best way to represent
the geographic information so PR 578 has not be moving forward since then.

But, since GeoTIFF is a superset of TIFF, at the minimium we could
replace TIFF internal implementation with GeoTIFF internal information,
so that it is possible to call decode_tiff to process GeoTIFF
to get the image.

This PR internally adds GeoTIFF support while no external API has been changed.

This PR closes 578.

Signed-off-by: Yong Tang <[email protected]>

Author: yongtang

.gitattributes

@@ -3,3 +3,4 @@ dwaLookups.* linguist-generated=true
 b44ExpLogTable.* linguist-generated=true
 toFloat.* linguist-generated=true
 eLut.* linguist-generated=true
+*.inc linguist-generated=true

WORKSPACE

@@ -110,6 +110,36 @@ http_archive(
     ],
 )
 
+http_archive(
+    name = "libgeotiff",
+    build_file = "//third_party:libgeotiff.BUILD",
+    sha256 = "12c26422e89da7032efcd60d48f3d82c7c0b4c9f3f61aa30c5e3df512946c6cf",
+    strip_prefix = "libgeotiff-1.5.1",
+    urls = [
+        "https://download.osgeo.org/geotiff/libgeotiff/libgeotiff-1.5.1.zip",
+    ],
+)
+
+http_archive(
+    name = "proj",
+    build_file = "//third_party:proj.BUILD",
+    sha256 = "0b157e1aa81df4d0dbd89368a0005916bb717f0c09143b4dbc1b20d59204e9f2",
+    strip_prefix = "proj-6.2.0",
+    urls = [
+        "https://download.osgeo.org/proj/proj-6.2.0.zip",
+    ],
+)
+
+http_archive(
+    name = "sqlite",
+    build_file = "//third_party:sqlite.BUILD",
+    sha256 = "adf051d4c10781ea5cfabbbc4a2577b6ceca68590d23b58b8260a8e24cc5f081",
+    strip_prefix = "sqlite-amalgamation-3300100",
+    urls = [
+        "https://www.sqlite.org/2019/sqlite-amalgamation-3300100.zip",
+    ],
+)
+
 http_archive(
     name = "com_github_azure_azure_storage_cpplite",
     build_file = "//third_party:azure.BUILD",

tensorflow_io/core/BUILD

@@ -177,6 +177,7 @@ cc_library(
         "@easyexif",
         "@fmjpeg2koj",
         "@freetype",
+        "@libgeotiff",
         "@libtiff",
         "@libwebp",
         "@openexr",