Do not emit progress for single loose object downloads

[mjcheetham]

When we need to download multiple, single loose objects, the output is very verbose and not very informative of progress (since we don't know how many more singular loose objects are going to be requested).

We should just drop the progress downloading in gvfs-helper "1 loose object" (unless it starts taking 'a long time').

mattche-mbp-01:src mattche$ git pull
Receiving 1 loose object (bytes received): 100% (375/375), done.
Receiving 1 loose object (bytes received): 100% (350/350), done.
Receiving 1 loose object (bytes received): 100% (224/224), done.
Receiving 1 loose object (bytes received): 100% (276/276), done.
Receiving 1 loose object (bytes received): 100% (779/779), done.
From https://mseng.visualstudio.com/AzureDevOps/_git/AzureDevOps
   edd94f1cf5b9..73d147b4de62  master                            -> origin/master
   cf0e56018c1f..16140c04e5c5  releases/AzureDevOps2019.1public  -> origin/releases/AzureDevOps2019.1public
   eadc257e2d74..a561db193597  releases/M153                     -> origin/releases/M153
   8c58be4ea336..856cebf7a07f  releases/M153.AzureDevOps2019.1.1 -> origin/releases/M153.AzureDevOps2019.1.1
   243c644e8115..941bc59fffaa  releases/M156                     -> origin/releases/M156
   736f57d62072..59c53d2fc0eb  releases/M157                     -> origin/releases/M157
   ac1c2d3c7187..dc9dddaef970  releases/M158                     -> origin/releases/M158
   a3938999cff2..252cece316de  releases/M159                     -> origin/releases/M159
Updating edd94f1cf5b9..73d147b4de62
Receiving 1 loose object (bytes received): 100% (3573/3573), done.
Receiving 1 loose object (bytes received): 100% (474/474), done.
Receiving 1 loose object (bytes received): 100% (586/586), done.
Receiving 1 loose object (bytes received): 100% (4068/4068), done.
Receiving 1 loose object (bytes received): 100% (822/822), done.
Receiving 1 loose object (bytes received): 100% (289/289), done.
Receiving 1 loose object (bytes received): 100% (575/575), done.
Receiving 1 loose object (bytes received): 100% (260/260), done.
Receiving 1 loose object (bytes received): 100% (226/226), done.
Receiving 1 loose object (bytes received): 100% (687/687), done.
Receiving 1 loose object (bytes received): 100% (1163/1163), done.
Receiving 1 loose object (bytes received): 100% (540/540), done.
Receiving 1 loose object (bytes received): 100% (593/593), done.
Receiving 1 loose object (bytes received): 100% (1110/1110), done.
Receiving 1 loose object (bytes received): 100% (750/750), done.
Receiving 1 loose object (bytes received): 100% (983/983), done.
Receiving 1 loose object (bytes received): 100% (1867/1867), done.
Receiving 1 loose object (bytes received): 100% (232/232), done.
Receiving 1 loose object (bytes received): 100% (389/389), done.
Receiving 1 loose object (bytes received): 100% (604/604), done.
Receiving 1 loose object (bytes received): 100% (579/579), done.
Receiving 1 loose object (bytes received): 100% (236/236), done.
Receiving 1 loose object (bytes received): 100% (528/528), done.
Requesting packfile with 1472 objects (bytes sent): 100% (63327/63327), done.
Receiving packfile with 1472 objects (bytes received): 5871954, done.
Indexing objects: 100% (1472/1472), done.
Updating files: 100% (6442/6442), done.
Fast-forward

[derrickstolee]

Fix is in microsoft/git#215, and I'll create a PR in Scalar to take the change soon.