Release v0.7.8-alpha

Features:
1、Support right-click to select the Move.toml project file to run mpm related commands
2、Unit tests & Integration tests support selecting a single file to run
3、Unit tests & Integration tests support selecting a single test case to run
4、Integration tests support update test baseline
5、Supports multiple projects in one workspace
6、Integrate move-analyzer to realize automatic completion of Move code, jump to definition, etc.
7、Upgrade mpm to v1.12.3
8、Upgrade move-analyzer to v0.3.0
9、Fix several issues