Add an option to change templates path

[pipoprods]

I’m using VIM in different contexts (personal & work) and need different templates for a given file type according to context.

I’m missing a way to change the way my templates are loaded.

A PR is coming.

[ap]

Hi, thank you for the patch. I’ve been thinking about it for a while and wondering if it might not make sense to impose a bit more policy. What kind of different values do you set this variable to in your own configuration? How does your templates directory structure look?

[pipoprods]

I’m keeping all my templates in .vim/templates directory and created a "work_templates" directory for the ones I’m using at work. Most of them are just symlinks to main ones. The Perl template is different, containing a header with my company name and work email address.

.vim/templates
├── work_templates
│   ├── html -> ../html
│   ├── javascript -> ../javascript
│   ├── perl
│   ├── python -> ../python
│   └── sh -> ../sh
├── html
├── javascript
├── perl
├── plaintex -> tex
├── python
├── sh
├── tex
└── vimwiki