Fix .dockerignore, add docker build for arm64

.dockerignore

@@ -1,26 +1,30 @@
-.idea
-*/thumbs
-*.cbp
-CMakeCache.txt
-CMakeFiles
-cmake-build-debug
-cmake_install.cmake
+.idea/
+*.sist2
+docs/
+test_i/
+test_i_inc/
+Testing/
+.drone.yml
+**/cmake_install.cmake
+**/CMakeCache.txt
+**/CMakeFiles/
+LICENSE
 Makefile
-*.out
-LOG
-sist2*
-index.sist2/
-bundle*.css
-bundle.js
-**/*.a
-**/vgcore.*
-build/
+**/*.md
+**/*.cbp
+VERSION
+**/node_modules/
 .git/
-third-party/libscan/libscan-test-files/
+sist2-*-linux-debug
+sist2-*-linux
+sist2_debug
+sist2
+**/libscan-test-files
+**/scan_ub_test
+**/scan_a_test
+**/scan_test
 **/ext_ffmpeg
 **/ext_libmobi
-**/scan_a_test
-Dockerfile
-*.idx/
-VERSION
-sist2-vue/node_modules/
+**/ext_libwpd
+**/core
+*.a