Merge branch 'develop' into master

Author: yaroslavyaroslav

Sources/Core/Utility/BigUInt+Extension.swift

@@ -13,3 +13,9 @@ public extension BigUInt {
         self = value
     }
 }
+
+#if COCOAPODS
+extension BigUInt {
+    var isZero: Bool { self == 0 }
+}
+#endif

Web3Core.podspec

@@ -1,6 +1,8 @@
 Pod::Spec.new do |spec|
+    spec.compiler_flags = '-DCOCOAPODS'
+
     spec.name         = 'Web3Core'
-    spec.version      = '3.0.0'
+    spec.version      = '3.0.4'
     spec.module_name  = 'Core'
     spec.ios.deployment_target = "13.0"
     spec.osx.deployment_target = "10.15"
@@ -12,7 +14,7 @@ Pod::Spec.new do |spec|
     spec.swift_version = '5.5'
 
     spec.dependency 'secp256k1.c', '~> 0.1'
-    spec.dependency 'BigInt', '~> 5.2.0'
+    spec.dependency 'BigInt', '~> 5.2.0' # no newer version in pods.
     spec.dependency 'CryptoSwift', '~> 1.5.1'
     spec.source_files = "Sources/Core/**/*.swift"
 end

web3swift.podspec

@@ -1,4 +1,4 @@
-WEB3CORE_VERSION ||= '3.0.0'
+WEB3CORE_VERSION ||= '3.0.4'
 
 Pod::Spec.new do |spec|
     spec.name         = 'web3swift'