Repo structure & dependency management

- Repo configuration
- Workspace initial setup
- Dependency management with git submodules
- Removal of unused dependencies.

Also new xpaths from following commits for testing:
````
static NSString* const kXPATHMainNovelList = @"//html/body/div[@id='mw-navigation']/div[@id='mw-panel']/div[@id='p-Light_Novels']/div[@class='body']/ul/li";
static NSString* const kXPATHNovelContent = @"//html/body/div[@class='mw-body']/div[@id='bodyContent']/div[@id='mw-content-text']";
static NSString* const kXPATHNovelCover = @"//html/body/div[@class='mw-body']/div[@id='bodyContent']/div[@id='mw-content-text']/div/div/a[@class='image']/img";
static NSString* const kXPATHNovelSynopsis = @"//html/body/div[@class='mw-body']/div[@id='bodyContent']/div[@id='mw-content-text']";
static NSString* const kXPATHNovelVolumes = @"//html/body/div[@class='mw-body']/div[@id='bodyContent']/div[@id='mw-content-text']";
````

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