GoAst Viewer

在 goast-viewer 的基础上，做了以下事项：

reference

Name		Name	Last commit message	Last commit date
Latest commit History 37 Commits
.gitignore		.gitignore
LICENSE		LICENSE
Makefile		Makefile
README.md		README.md
angular-ui-tree.min.css		angular-ui-tree.min.css
angular-ui-tree.min.js		angular-ui-tree.min.js
ast.go		ast.go
ast_perf_test.go		ast_perf_test.go
favicon.ico		favicon.ico
go.mod		go.mod
goast-viewer.png		goast-viewer.png
goast.css		goast.css
goast.js		goast.js
index.html		index.html
lib.wasm		lib.wasm
main.go		main.go
pure-min.css		pure-min.css
server.go		server.go
wasm_exec.js		wasm_exec.js