Results 4 issues of Minuk

**Before submitting this PR, please make sure**: - [x] Your code builds clean without any errors or warnings - [x] You are using approved title ("feat/", "fix/", "docs/", "refactor/") **A...

In paper's math, contrastive loss is included in loss as distance between negative sample and transition in latent space but in code, constrastive loss is included as distance between negative...

in the paper, d(z,z') = 1/2(z-z')^2 but here in the code, distance.distance is distance member of HingedSquaredEuclidean, which is just square_dist. which does not divide by 2. self.distance will call...

Hi, When training the high-level policy in skimo_agent.py, z_next_pred is initialized as the first observation(line 616) and it is not updated at all after that. Assuming from the comment and...