Add .gitattributes and .gitignore

.gitattributes

@@ -0,0 +1,24 @@
+# Data files via Git LFS
+*.tar filter=lfs diff=lfs merge=lfs -text
+*.zip filter=lfs diff=lfs merge=lfs -text
+*.gz filter=lfs diff=lfs merge=lfs -text
+*.h5 filter=lfs diff=lfs merge=lfs -text
+*.hdf5 filter=lfs diff=lfs merge=lfs -text
+*.npy filter=lfs diff=lfs merge=lfs -text
+*.npz filter=lfs diff=lfs merge=lfs -text
+
+# Image data: binary
+*.png       binary
+*.jpg       binary
+*.jpeg      binary
+*.bmp       binary
+*.gif       binary
+
+# Source / config: LF
+*.py        text eol=lf
+*.sh        text eol=lf
+*.json      text eol=lf
+*.yaml      text eol=lf
+*.yml       text eol=lf
+*.csv       text eol=lf
+*.md        text eol=lf