add request logs for iOS:APNs and Android:FCM

[keremoge]

APNs and FCM Api request logs added to see which requests are going to APNs And FCM servers

Example:

• [x] request going gorush:

{
  "notifications": [
    {
      "platform": 1,
      "priority": "high",
      "tokens": [
        "**********4wAABp_BOYhKWWMLfSF9GV52UO_rYvBoKbQuuuI6HWSfLdG7_t-ZhA2_Zg47BpQbzBegmHUxovPTp3rU0xajPAfnz9IkOb**********"
      ],
      "content_available": true,
      "category": "CONFIRM",
      "sound": {
        "critical": 1,
        "name": "default",
        "volume": 1
      },
      "alert": {
        "body": "iOS UAT başarılı bildirim geldi"
      },
      "data": {
        "customerNo": 12345,
        "languageCode": "tr",
        "specificCharText": "denemee"
      }
    }
  ]
}

• [ ] request going APNS: (We need this)

{
  "aps": {
    "alert": {
      "body": "iOS UAT başarılı bildirim geldi"
    },
    "category": "CONFIRM",
    "content-available": 1,
    "sound": {
      "critical": 1,
      "name": "default",
      "volume": 1
    }
  },
  "customerNo": 12345,
  "languageCode": "tr",
  "specificCharText": "denemee"
}

[codecov-commenter]

Codecov Report

Merging #639 (78698fa) into master (9d47494) will decrease coverage by 0.15%. The diff coverage is 31.57%.

@@            Coverage Diff             @@
##           master     #639      +/-   ##
==========================================
- Coverage   65.05%   64.89%   -0.16%     
==========================================
  Files          21       21              
  Lines        1783     1792       +9     
==========================================
+ Hits         1160     1163       +3     
- Misses        562      564       +2     
- Partials       61       65       +4     

Impacted Files	Coverage Δ
notify/notification_hms.go	4.38% <0.00%> (ø)
notify/notification_apns.go	86.30% <40.00%> (-0.99%)	:arrow_down:
notify/notification_fcm.go	70.21% <40.00%> (-1.12%)	:arrow_down:
storage/redis/redis.go	70.37% <100.00%> (-0.37%)	:arrow_down:

---

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[keremoge]

@appleboy can you approve this? It is helpful for debugging