Changes shortcut keys for diff with previous commands

Adds diff with next command
Fixes #45 - Keyboard Shortcut collision with Project Manager
Preps v2.11.2

src/git/gitEnrichment.ts

@@ -108,6 +108,8 @@ export type GitLogType = 'file' | 'repo';
 export class GitLogCommit extends GitCommit {
 
     fileStatuses: { status: GitFileStatus, fileName: string }[];
+    nextSha?: string;
+    nextFileName?: string;
     status: GitFileStatus;
 
     constructor(
@@ -135,6 +137,10 @@ export class GitLogCommit extends GitCommit {
             this.fileStatuses = [{ status: status, fileName: fileName }];
         }
     }
+
+    get nextUri(): Uri {
+        return this.nextFileName ? Uri.file(path.join(this.repoPath, this.nextFileName)) : this.uri;
+    }
 }
 
 export interface IGitCommitLine {