Rename c2s types as the module name already contains c2s

[NelsonVides]

Simply rename the types, mongoose_c2s:c2s_state() contains duplicated information, we already know the type refers to c2s by its module name.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (c2s/csi@a356ac5). Click here to learn what that means.
Patch has no changes to coverable lines.

❗ Current head 6b380a7 differs from pull request most recent head 0031b71. Consider uploading reports for the commit 0031b71 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             c2s/csi    #3908   +/-   ##
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  Coverage           ?   73.19%           
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  Files              ?      540           
  Lines              ?    34183           
  Branches           ?        0           
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  Hits               ?    25021           
  Misses             ?     9162           
  Partials           ?        0           

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[mongoose-im]

small_tests_24 / small_tests / 0031b71
Reports root / small

---

small_tests_25 / small_tests / 0031b71
Reports root / small

---

ldap_mnesia_24 / ldap_mnesia / 0031b71
Reports root/ big
OK: 1745 / Failed: 0 / User-skipped: 797 / Auto-skipped: 0

---

dynamic_domains_pgsql_mnesia_24 / pgsql_mnesia / 0031b71
Reports root/ big
OK: 3879 / Failed: 0 / User-skipped: 78 / Auto-skipped: 0

---

ldap_mnesia_25 / ldap_mnesia / 0031b71
Reports root/ big
OK: 1745 / Failed: 0 / User-skipped: 797 / Auto-skipped: 0

---

pgsql_mnesia_24 / pgsql_mnesia / 0031b71
Reports root/ big
OK: 4055 / Failed: 0 / User-skipped: 89 / Auto-skipped: 0

---

internal_mnesia_25 / internal_mnesia / 0031b71
Reports root/ big
OK: 1897 / Failed: 0 / User-skipped: 645 / Auto-skipped: 0

---

riak_mnesia_24 / riak_mnesia / 0031b71
Reports root/ big
OK: 2087 / Failed: 0 / User-skipped: 624 / Auto-skipped: 0

---

dynamic_domains_mysql_redis_25 / mysql_redis / 0031b71
Reports root/ big
OK: 3853 / Failed: 0 / User-skipped: 104 / Auto-skipped: 0

---

dynamic_domains_pgsql_mnesia_25 / pgsql_mnesia / 0031b71
Reports root/ big
OK: 3879 / Failed: 0 / User-skipped: 78 / Auto-skipped: 0

---

elasticsearch_and_cassandra_25 / elasticsearch_and_cassandra_mnesia / 0031b71
Reports root/ big
OK: 2249 / Failed: 0 / User-skipped: 632 / Auto-skipped: 0

---

dynamic_domains_mssql_mnesia_25 / odbc_mssql_mnesia / 0031b71
Reports root/ big
OK: 3879 / Failed: 0 / User-skipped: 78 / Auto-skipped: 0

---

pgsql_mnesia_25 / pgsql_mnesia / 0031b71
Reports root/ big
OK: 4055 / Failed: 0 / User-skipped: 89 / Auto-skipped: 0

---

mysql_redis_25 / mysql_redis / 0031b71
Reports root/ big
OK: 4041 / Failed: 0 / User-skipped: 103 / Auto-skipped: 0

---

mssql_mnesia_25 / odbc_mssql_mnesia / 0031b71
Reports root/ big
OK: 4055 / Failed: 0 / User-skipped: 89 / Auto-skipped: 0

[JanuszJakubiec]

looks good