chore: move RNLine.podspec inside ios folder

Author: Joaguirrem

RNLine.podspec

@@ -0,0 +1,26 @@
+require 'json'
+
+package = JSON.parse(File.read(File.join(__dir__, '..', 'package.json')))
+
+Pod::Spec.new do |s|
+  s.name          = 'RNLine'
+  s.version       = package['version']
+  s.summary       = package['description']
+  s.license       = package['license']
+
+  s.authors       = package['author']
+  s.homepage      = package['homepage']
+  s.platform      = :ios, "13.0"
+  s.swift_version = '5.4'
+
+  s.source        = { :git => "https://github.com/xmartlabs/react-native-line" }
+  s.source_files  = "**/*.{h,m,swift}"
+
+  # Swift/Objective-C compatibility
+  s.pod_target_xcconfig = {
+    'DEFINES_MODULE' => 'YES'
+  }
+
+  s.dependency 'React-Core'
+  s.dependency 'LineSDKSwift', '~> 5.8.1'
+end