Update plugin command

[rosen-vladimirov]

Scenario

Plugin A is installed with version 1.0.0. After some time, a new version is released. We need an easy way to install the new version of the plugin. Using tns plugin add A is telling me that the plugin is already installed.

Possible solutions

• tns plugin add A should update the version of the plugin to its latest one.
• tns plugin update A should update the plugin A to its latest version.
• tns plugin update could update all plugins to their latest versions.

Workaround

By default adding plugin with tns plugin add <plugin name> adds it to package.json with "^". This way, if you execute npm install in your project directory, the plugin in node_modules will be the latest one.
Also you can remove the plugin with tns plugin remove A and add it again with tns plugin add A. This way, plugin add command will use the latest version of the plugin.

[atanasovg]

+1 for this feature, without it it is a bit tedious to incrementally develop and test a plugin.